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Egg White + Collagen Protein Powder
Minimally-Processed Egg White + Collagen Protein Powder for Sensitive Stomachs – If It Upsets Your Stomach, It’s Free
easy to use
easy to digest
grams protein
Nutrition Facts
Maple Cinnamon Nutrition Facts
Peanut Butter Nutrition Facts
Reviews (170)
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While Supplies Last!
Because they’re limited edition, these protein powders aren’t part of our Subscribe & Save program.
Jack's Story
Sick of protein powders that upset his stomach, Jack made his own from a short list of simple ingredients.
Stomach-Friendly Guarantee
If it upsets your stomach, we’ll issue a refund for 1 multi-serving pouch.
Stomach-Friendly Guarantee
If you have a sensitive stomach, we recommend that you order Samples before buying a multi-serving pouch.
Ask Our Dietitian
If you have a product-related question, ask our Registered Dietitian. They'll reply via email.
Ask Our Dietitian
Product Info
Egg White + Grass-Fed, Bovine Collagen Protein Powder
Made in Massachusetts
Third-Party Tested
Additive, Dairy & Gluten-Free
Recommended for Sensitive Stomachs
Our Egg White + Collagen Protein Powder Won’t Upset Your Stomach
It’s Jack, the founder of Drink Wholesome.
Our minimally-processed Egg White + Collagen Protein Powder can help you meet your protein needs without causing digestive issues.
It’s recommended for sensitive stomachs by registered dietitians, and if it upsets your stomach, it’s free!
I created Drink Wholesome because the artificial and ultra-processed ingredients in other protein powders upset my stomach.
You won’t find a better alternative…Trust me, I’ve tried.
Dietitians Recommend
for Sensitive Stomachs
“I have a patient who is very picky. He has gone through multiple different brands over the years and was so excited to find a clean, simple protein powder.”
“The ingredient philosophy stands out. It’s on my shortlist of products that align with my values for nourishment and simplicity.”
“Simple ingredients. Good taste.”
“Many of my IBS and SIBO clients struggle to find a good-tasting powder that’s also gut friendly. This is both.”
“Drink Wholesome is awesome and delicious. I recommend it to my patients all the time.”
“It doesn’t upset my stomach or lower GI, and it tastes great!”
“It’s easy to digest, which makes it ideal for people who can’t tolerate other protein powders!”
“As someone who suffers with IBS, finding a protein powder that doesn’t my stomach is a real challenge. You should be proud of what you’ve created.”
“I love the quality ingredients and the taste.”
“I like the taste, simplistic ingredients, and easy digestibility for GI clients.”
“I’m a personal consumer of drink wholesome and as a dietitian have recommended it to many people.”
“I love Drink Wholesome for its clean, simple ingredient lists and easy-to-digest protein/nutrition shakes.”
“I recommend it for my gut clients because it has all the right components: taste, texture, and function!
“I like Drink Wholesome because the ingredient list is so short – only a few simple and healthy ingredients!”
“I love the simple ingredients!”
“It’s easy to digest without sacrificing flavor.”
“Since finding Drink Wholesome, I’ve finally been able to incorporate higher protein smoothies and shakes without the digestive upset.”
“I was very impressed by the taste, quality and minimal ingredients. Your products would be perfect for my clients!”
“It’s a great protein powder!”
“My patients benefit from having a protein powder that works when they are in a flare and can’t eat solid foods.”
“It was a perfect pairing with my black coffee and creatine. Most importantly, I had zero GI issues!!”
“As someone with type 1 diabetes, I’ve found Drink Wholesome to be a great option. Its simple ingredients and high protein content meet my needs.”
“I love the minimal ingredients!”
“Drink Wholesome has been an amazing, gut-friendly options for my clients!”
“I love the simple ingredients and yummy taste.”
“I work with clients with gut health issues, mainly IBS and SIBO. I can confidently recommend your protein powder as one that is well-tolerated, but also tastes great.”
100,000+ Customers
Because It's Easy to Digest
“I wanted to say that I am extremely satisfied with your product. It doesn’t bother my stomach at all.”
“It sat great in my stomach and tastes incredible!”
“Since having Lyme disease, I’ve developed a very sensitive stomach. This protein powder doesn’t bother my stomach at all!”
“My son was diagnosed with Crohn’s last year. The clean ingredients in your products don’t upset his gut and provide much needed calories and nutrition.”
“I’ve been dealing with frequent bouts of SIBO. This is the only protein powder that I’ve been able to tolerate consistently.”
“Whey protein used to give me the worst gas and indigestion but with this one no problem at all.”
“A friend gave some of her Drink Wholesome and it immediately made me feel better than what I was using.”
“Thanks for making the only protein drink I can have. SIBO limits my diet tremendously so I do appreciate your 4 ingredient shake.”
“Great product and works well for sensitive stomachs as claimed!”
“THANK YOU for developing such a clean product. I have so many digestive issues and most protein powders bother my system.
“It has been the only protein powder to not upset my boyfriend’s digestive system and still taste good.”
“I am in love with DRINK WHOLESOME as you guys help me look good and feel good and stay sensitive for my tummy!”
“I’m going through a health issue and I cannot keep anything down, except for Drink Wholesome.”
“Tastes clean and amazing! My stomach thanks you too.”
“This is the only thing I’ve tried that actually does what I need AND doesn’t mess with my digestive tract.”
“I love Drink Wholesome because it’s the best-tasting and the best on my stomach.”
“I suffer from severe stomach problems (undiagnosed IBS) and your protein powder is the only one that I can tolerate and feel good!!”
“Very few ingredients. Doesn’t send me to the bathroom. Highly recommend.”
“My athlete daughter with a sensitive stomach can use this without any problems. 🙌🏻”
“Finding a product with clean, real ingredients felt like a breath of fresh air.”
“It’s made with whole foods that my body knows how to process!”
“It’s not easy to find a clean protein powder that’s easy on the stomach.”
“I’m sensitive to whey, so I’ve loved the egg white version.”
“I’m very happy with your protein powder. I’ve had no stomach issues from day 1!”
“I love that your protein powder is gentle for the stomach.”
“My dietitian recommended your protein powders to me when I was diagnosed with GERD.”
“Simple, clean, and easy-to-digest.
“It’s great tasting and doesn’t cause stomach pain.”
“Your protein powder is a gift to my IBS gut!”
“It doesn’t upset my stomach, and it tastes great! No chalky or artificial taste, and only whole-food based ingredients!”
“I love these products. So far they haven’t bothered my stomach yet..So I’m really happy.”
“The only protein powder I buy! Amazing for anyone who has a sensitive tummy…”
It’s very nice and doesn’t upset my stomach. Also tastes good.”
“This is the ONLY powder I’ve found that doesn’t mess with my digestive system. And it tastes so good!!”
“I used to use plant proteins that contained pea isolate and they always made me bloated. So glad I found Drink Wholesome!”
“I love the taste and how it makes me feel.”
“It is the only protein powder I could tolerate during pregnancy.”
“It keeps me going all day long until dinner and I don’t feel full or bloated or gassy.”
“So many proteins are full of gums and things that make our stomachs unhappy, so your simple-ingredient approach is a breath of fresh air. 🙌”
“I was using this while going through cancer treatment. Thank you for making a good protein powder that didn’t hurt my stomach!”
“I really appreciated the lack of digestive issues, and everyone loved the taste. Great product!”
“No gas, no heaviness, nothing. It’s such a relief to finally find something I can enjoy without worrying about how I’ll feel later.”
“Until I found Drink Wholesome, every protein powder I tried made me bloated.”
“I’m so grateful for your products. They’re the first (of many tried) that taste terrific, are healthy, AND don’t upset my system at all.”
“I’ve had a sensitive stomach my whole life so I was excited to find drink wholesome. It’s SO much easier to digest than any other brand I’ve tried.”
“I have gastritis and can’t eat the other shakes as they hurt my stomach. This is the only one that doesn’t.”
“Pretty much every other powder I’ve tried gives me digestive discomfort. This is the only one I’ve tried that doesn’t and believe me I’ve tried a lot!”
“I’m so happy to finally discover protein powder that doesn’t disagree with me.”
“It feels more like real food than a typical protein drink.”
“Due to IBS sensitivities caused by a battle with stage 3 cancer, your approach is a far better fit for me than the more complex “all-in-one” blends.”
“It’s easy on my stomach and fits naturally into my daily routine.”
“It’s the only protein powder I can tolerate. We use it for protein coffee every morning.”
“I exclusively drink Drink Wholesome and I love them so much. They never bother my sensitive stomach and they taste great!”
“I love your protein powder and am so happy that you saw and filled a need for people like me with pesky stomachs.”
“I have ulcerative colitis and it has helped me tremendously. I had a flare up and a leaky gut and the only thing that wouldn’t burn my gut lining was this product.”
“My stomach and I absolutely love your products.”
“I love Drink Wholesome because it doesn’t cause any bloating and it is easy on my stomach.”
“Thanks to Drink Wholesome I don’t have to have an upset stomach just to hit my protein goals.”
“I’ve long time consumer of your protein powder and it’s the only protein powder that doesn’t upset my digestive system and still tastes good.”
“I am loving my Drink Wholesome. I have it every day and haven’t once had stomach issues.
“I love the taste and that it doesn’t bother my stomach!”
“I love drink wholesome because other protein powders give me migraines and stomach aches.”
“I love the simple ingredients and how no GI upset occurs after consumption.”
“I have been using your vanilla protein powder and I absolutely love it!! No stomach issues at all.”
“I have Crohn’s disease. The only protein powder that has ever worked for me is Drink Wholesome.”
“I have acid reflux, Gerd, and allergies to a lot of stuff, and this works for me! Tastes good too.”
“Thank you for addressing my digestive issues with your great product.”
“I had digestive issues and discomfort none of which I had with your formula.”
“The flavor and digestibility is better than other protein powders that I have used and it’s nice that it doesn’t add extra gross ingredients.”
“I’ve struggled for years with IBS and have tested countless protein products. Your product is the first I’ve found that I can safely use without digestive issues.”
“I have digestive problems. I use Drink Wholesome a lot and like it.”
“I have major digestive problems and your ingredients are perfect for anyone with sensitive digestive issues or just want a product that’s healthy!”
“I love that my daughter and I can enjoy this protein powder without fear of upsetting our stomachs.”
“I am so glad for your protein power as I have ulcerative colitis and dairy is a no for me.”
“I love that they’re carefully formulated for sensitive stomachs!”
“Drink Wholesome is the best option on the market in terms of quality, digestibility, and nutritional value.”
“So many proteins are full of things that make our stomachs unhappy. Your simple ingredients are a breath of fresh air.”
“I finally found a protein powder that tastes good and my husband likes it too because it doesn’t contribute to slow gastric emptying.”
“It’s easy to digest, free from gums, artificial sweeteners, and additives that often cause bloating.”
“I have a super sensitive stomach and love this protein!”
“I love Drink Wholesome because it’s made with real, simple ingredients that are easy to digest and taste great.”
“I absolutely love the ease of digestion + the taste!”
“It doesn’t have a lot of ingredients, but still tastes good, and doesn’t cause GI symptoms.”
“I have major digestive problems and your ingredients are perfect for someone like me.”
“It’s delicious and works for my sensitive gut.”
“I love the taste, clean ingredients, and digestibility!”
“Well-tolerated and yummy!”
“It tastes great and never leaves me feeling bloated or nauseous after I drink it.”
“It isn’t chalky and is easily digestible.”
“I love that with Drink Wholesome I can fuel up without fear of upsetting my stomach.”
“It tastes yummy and is easier on my GI tract than other protein powders.”
“This is literally the only meal replacement powder I’ve been able to digest without getting stomach aches!!”
“The idea of a product being dietitian-approved and easy to digest is such a game-changer!”
“It has ingredients that I can actually pronounce!!! I also have a sensitive stomach so it’s a perfect fit!”
“It mixes well in a variety of liquids and creates no GI stress.”
“It doesn’t hurt my stomach and it’s delicious!”
“It helps me get the protein I need, without upsetting my stomach.”
“When I found Drink Wholesome, I finally found something that I could eat without pain.”
“Your protein powder IS amazing. Easy to digest, no acid reflux, and delicious.”
“I love Drink Wholesome protein powder…It’s the only one that my stomach agrees with.”
“As a runner, I love that it’s gut-friendly and made with real ingredients.”
“In my gut healing journey and am obsessed with Drink Wholesome.”
“Since finding Drink Wholesome, I have finally been able to incorporate higher protein smoothies and shakes without the digestive upset.”
“After trying MANY protein powders, Drink Wholesome has become my top choice. It tastes good and has honestly never upset my stomach.”
“Being diagnosed with IC has been one of my biggest challenges and I’m so grateful to have finally found a protein powder that works for me.”
“It’s so good for my stomach when I have lots of issues ❤️”
“This is the first protein drink that hasn’t caused bloating for me! I’m so glad to have found you 😎”
“I have acid reflux and your product was recommended for people like me. I ordered it and I love it! It’s so clean and I digest it so well.”
“We started using your powder because of my husband’s Crohn’s, but love it just because.”
“You and your company are the best. I recommend you to everyone I know with stomach issues!”
“LOVE Drink Wholesome. I have Gastroparesis, and your protein powder doesn’t hurt my stomach…Thankful!”
“Drink Wholesome didn’t give me any stomach issues at all. Anyone who has had bloating, gas, etc. should try this protein powder!”
“I have tried countless protein powders and all of them left me bloated, gassy, etc. Then I found yours and it makes me feel absolutely amazing.”
“I tried your protein powder for one month, went back to my previous brand, as a test, and felt a difference. I’m sticking with Drink Wholesome.”
“I have IBS and SIBO and have struggled to find a good-tasting powder that is also gut friendly. This is both.”
“This product is the first of its kind that does not irritate or hurt my stomach.”
“It feels very relieving to find something that works for my ever-changing GI issues.”
“After trying MANY powders, Drink Wholesome has become my go-to IBS-friendly and lactose-free simple ingredient shake.”
“I was just diagnosed with ulcerative colitis, and these powders have literally saved my life. On days when I cannot eat anything else, I drink these.”
“I was being treated for SIBO, and your shakes really helped me get through that phase with no tummy upset.”
“After two years of trial and error I found Drink Wholesome and am so happy to finally be able to drink protein shakes without upsetting my stomach.”
“As somebody with IBD who struggles with eating enough protein, this makes my life so much easier and I feel like I have more flexibility with my diet.”
“Every other protein powder I tried literally made me run to the bathroom. I was about to give up when I found Drink Wholesome. It has been a lifesaver.”
“I have dealt with recurring SIBO. The only food I could stomach was white rice. Then, I found your drink, and it gave me something new I could digest.”
“As someone with literally every digestive issue (SIBO, IBS, lactose intolerance), I’m amazed by this product. Easy to digest and so good! ☺️”
“I was recently diagnosed with Crohn’s Disease and I’m using this product to gain some of the weight back I’ve lost over the past few months.”
“My mom suffers from stomach adhesions. Drink Wholesome is the only protein powder that does not trigger her stomach issues. Thank you! 🙌”
“Drink Wholesome has changed my life because I suffer from GERD, and it’s the only protein powder that works for my stomach and digestion.”
“I’ve been struggling for a long time to find a protein powder that agrees with my stomach, and thanks to you guys, I FINALLY found one! ☺️”
“I have gastroparesis and IBS-C and these protein powders have been nice. It can be hard to find a protein powder that doesn’t cause flare ups.”
“This is the first protein powder that HAS NOT hurt my stomach, tastes great, and is satisfying.”
“This stuff is like no other, like not kidding, it’s amazing. I’m gluten-free and have a super sensitive stomach, and I can drink this every day!”
“Finally, a protein shake I can eat! I have leaky gut, MCAS, histamine intolerance, and IBS. This is the only protein shake that works for me.”
“I’ve been experiencing weight loss for months due to an IBS flare up. I found this simple meal replacement, and it’s one of the only things I can tolerate.”
“I developed histamine intolerance, which left me with many food sensitivities, so I love your protein! I should’ve created it, but I’m glad you did! 😉”
“I was diagnosed with IBD a few years ago, and it has been so hard to eat enough since. Drink Wholesome is a lifesaver. 👊”
“For several years now, protein powders have caused me severe stomach issues, until I found your product. I can’t thank you enough!”
“Other proteins kill my gut. You guys are seriously making life support for me. Thank you for all you do!”
“Love love love. I have gastritis and this is good for me. Thank you! I finally feel like I can have a consistent diet.”
“I’ve had IBS and stomach sensitivities my entire life, and as a very active vegetarian, I’d be lost without this 👏”
“I was recently diagnosed with diverticulitis. Let’s just say I’ve been ordering regularly for 1 year now and am damn happy I found this product!”
“I have ulcerative colitis and really need protein powder, but nothing agrees with my stomach…except for Drink Wholesome!”
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Why Is Our Egg White + Collagen Protein Powder Safe for Sensitive Stomachs?
There are 3 types of protein powder ingredients that are notorious for causing digestive issues.
They are 1) food additives, 2) dairy-based proteins, and 3) ultra-processed protein concentrates and isolates.
99% of protein powders contain one or more of these problematic ingredients, whereas Drink Wholesome doesn’t.
In fact, there’s nothing in Drink Wholesome you couldn’t find in nature.
Just look at the short list of simple ingredients!
My Ingredients
egg whites
peanuts
coconut
monk fruit
NOT My Ingredients
- acacia gum
- acesulfame potassium
- artificial flavors
- carrageenan
- erythritol
- guar gum
- inulin
- maltodextrin
- 'natural' flavors
- silica
- soy lecithin
- sucralose
- xanthan gum
- xylitol
It's Additive-Free
Our Egg White + Collagen Protein Powder doesn’t contain any food additives whatsoever.
This is good news for sensitive stomachs because certain additives, especially artificial sweeteners, emulsifiers, and thickeners, could cause digestive issues (FASEB J, 2025).
There are many reasons why food additives might upset your stomach, and individual tolerances vary.
That said, most food additives are ultra-processed, meaning they look nothing like whole foods.
This could make them hard to digest for some, contributing to side effects like bloating, diarrhea, and stomach pain.
Certain food additives, especially artificial sweeteners, could also alter the composition and function of your gut microbiome (Eur J Nutr, 2020).
These shifts, known as gut dysbiosis, contribute to many chronic digestive issues (J Appl Microbiol, 2020).
Dysbiosis is so problematic because it causes intestinal permeability, systemic inflammation, impaired nutrient absorption (Crit Rev Food Sci Nutr, 2022; Microorganisms, 2023).
To be fair, little research has investigated the long-term effects of regular food additive consumption on digestive health.
Avoiding food additives certainly can’t hurt, however, especially if you have a sensitive stomach.
It's Dairy-Free
Our Egg White + Collagen Protein Powder is free from dairy-based proteins like whey and casein.
The main problem with whey and casein is they contain lactose, a sugar most people can’t fully digest (Am J Clin Nutr, 2019), but you might be sensitive even if you’re not lactose intolerant.
For starters, some caseins release a bioactive peptide during digestion that has been linked to digestive issues (Adv Nutr, 2017).
Casein also forms a gel-like substance in your stomach that slows down digestion (Crit Rev Food Sci Nutr, 2023).
For some individuals – particularly those with cow’s milk protein allergy/intolerance – slow digestion can contribute to bloating and other side effects.
It's Made from Whole Foods
Our Egg White + Collagen Protein Powder is made from whole food protein sources, not ultra-processed protein concentrates or isolates.
Protein concentrates and isolates have been mechanically and/or chemically stripped of everything but the protein.
This includes the fiber, enzymes, and other natural digestive aids that help you break them down.
You therefore don’t digest protein concentrates and isolates in the same way that you do whole foods (J Agric Food Chem, 2023; Foods, 2022).
For some individuals, this could lead to their fermentation in your gut, which has been linked to inflammation and digestive issues (Crit Rev Food Sci Nutr, 2017; Mol Nutr Food Res, 2024).
One study even shows the consumption of concentrates and isolates could alter the composition of your gut microbiome (Nutrients, 2018).
For the record, protein concentrates and isolates are generally well-tolerated.
But their impact on digestive health is variable, which means they could be problematic for some individuals with sensitive stomachs.
It follows that instead of using protein concentrates or isolates, I use whole foods like egg whites and almonds, which are easy to break down and absorb.
Our customers experience few to no digestive issues with our Egg White + Collagen Protein Powder as a result.
Reviews
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Verified Purchase Thank to Drink Wholesome I don’t have to have an upset stomach just to hit my protein goals.
Verified Purchase I love your product and have been a daily user since before Covid. Thanks for making a great product.
Verified Purchase Simple and delicious. drink wholesome also has elite customer service which includes prompt and courteous solutions 👏
Verified Purchase one of the cleanest nutritional profiles I’ve seen
Verified Purchase We love this protein powder!!! I have major digestive problems and your ingredients are perfect for anyone with sensitive digestive issues or just want a product that’s healthy! digestive issues
Verified Purchase I love that the ingredients are simple and recognizable! Also, I love that my daughter and I can enjoy this protein powder without fear of upsetting our stomachs.
Verified Purchase Before this I had tried so many different powders and they all messed with my gut. Stomach pain, indigestion, inflammation and headaches. This is the ONLY powder I’ve found that doesn’t mess with my system. And it tastes so good !! I can finally meet my protein goals with ease !! digestive issues
Verified Purchase I just wanted to say how much we truly love your products. As a celiac family, clean ingredients aren’t just a preference — they’re a must. So many protein and nutrition products out there are full of gums, additives, and things that make our stomachs so unhappy, but your simple-ingredient approach is such a breath of fresh air. 🙌✨ I love knowing exactly what I’m putting into my body (and my kids’!), and your formulas feel safe, gentle, and genuinely nourishing. It’s hard to find a brand that cares about digestive health the way you do — and it makes such a difference for families like ours.
Verified Purchase Honestly, it just tastes amazing! I’ve always been really picky with protein supplements, because most of them tastes horrible and can have a gritty or chalky texture. Drinking Wholesome has none of that. I’ve only tried the Maple Cinnamon, but I’m excited to try the other flavors.
Verified Purchase I liked the flavor, and I appreciate the short, clean ingredients list.
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Frequently Asked Questions
What is Egg White Protein Powder?
The main source of protein in Egg White Protein Powder is egg whites, the clear liquid that surrounds the yellow yolk of an egg. Egg White Protein Powder can be used to make protein shakes, or added to recipes to increase the protein content. Note that it is a dietary supplement and should not be used to replace other protein sources.
Why should I use Egg White Protein Powder?
Adding Egg White Protein Powder to your diet is an easy way to supplement your protein intake. If you cannot get enough protein from other protein sources, Egg White Protein Powder can help you fill in gaps in your diet. Many customers choose Drink Wholesome because it is made from a short list of simple ingredients and for sensitive stomachs.
How should I use Egg White Protein Powder?
Replacing a meal or part of a meal with a protein shake is a popular way to use Egg White Protein Powder. To make a shake, simply mix 1 serving of Egg White Protein Powder with 1-2 cups of cold milk or water. I recommend using a blender, electric mixer, or Shaker Bottle to help the protein powder dissolve. You can also add Egg White Protein Powder to smoothies, oatmeal, and other recipes. Check out Protein Powder Recipes for more ideas.
When should I use Egg White Protein Powder?
Use Egg White Protein Powder any time you want a protein boost, which might be first thing in the morning, as a midday snack, or right after a workout. Eating protein first thing in the morning will prevent overeating later in the day. Eating protein as a snack will curb cravings. Eating protein after a workout will help your muscles recover. Most people use 1-2 servings of Egg White Protein Powder per day.
Where is this Egg White Protein Powder made?
This Egg White Protein Powder is made in Plymouth, Massachusetts in a FDA and USDA-inspected and GMP-Certified facility. Drink Wholesome has had the same production team since day one, and unlike other companies, built and manages its own supply chain. Check out My Ingredients to learn more.
How is this Egg White Protein Powder made?
The primary ingredient in this Egg White Protein Powder is egg whites, which are broken, pasteurized, and spray-dried less than 24 hours from when they are laid. As far as protein powder manufacturing goes, this process involves the least amount of mechanical and chemical intervention.
Who is this Egg White Protein Powder for?
This Egg White Protein Powder is made specifically for people with sensitive stomachs and chronic digestive issues. It is also perfect for people who want an easy protein boost without extra processing and added junk. This might include kids, seniors, and pregnant and breastfeeding mothers. Order Samples to see if it is right for you.
Refunds
In the event that a product fails to arrive, or arrives in materially damaged condition, please contact us within 30 days of your order date with your order number and, where applicable, photos documenting the damage. We will review your claim within five (5) business days of receipt. If your claim is approved, Drink Wholesome will issue a replacement product at no additional cost to you within five (5) to ten (10) business days of approval. Read our full Refund Policy.
Returns
Due to the nature of our products and the cost burdens associated with return logistics, we do not accept returns or exchanges for any reason other than non-delivery or materially damaged delivery. Read our full Returns Policy.
Cancellations
Once an order has been submitted, it is processed immediately and cannot be canceled, modified, or revoked. Read our full Cancellation Policy.
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Author & Medical Reviewer
Editorial Guidelines
Our articles are written by a Certified Nutrition Coach and medically reviewed by a Registered Dietitian. We rely on peer-reviewed research and trusted medical sources, and regularly update our content to ensure accuracy and clarity.
Sources
- FASEB Journal (FASEB J). Food Additives: Emerging Detrimental Roles on Gut Health. 2025.
- European Journal of Nutrition (Eur J Nutr). The impact of food additives, artificial sweeteners and domestic hygiene products on the human gut microbiome and its fibre fermentation capacity. 2020.
- Journal of Applied Microbiology (J Appl Microbiol). Gut dysbacteriosis and intestinal disease: mechanism and treatment. 2020.
- Critical Reviews in Food Science and Nutrition (Crit Rev Food Sci Nutr). Relationship between intestinal microbiota, diet and biological systems: an integrated view. 2022.
- American Journal of Clinical Nutrition (Am J Clin Nutr). Lactose digestion in humans: intestinal lactase appears to be constitutive whereas the colonic microbiome is adaptable. 2019.
- Advances in Nutrition | Journal (Adv Nutr). Systematic Review of the Gastrointestinal Effects of A1 Compared with A2 β-Casein. 2017.
- Critical Reviews in Food Science and Nutrition (Crit Rev Food Sci Nutr). Milk proteins: Processing, gastric coagulation, amino acid availability and muscle protein synthesis. 2023.
- Journal of Agricultural and Food Chemistry (J Agric Food Chem). Effects of Food Factors and Processing on Protein Digestibility and Gut Microbiota. 2023.
- Foods (Foods). Effect of Fractionation and Processing Conditions on the Digestibility of Plant Proteins as Food Ingredients. 2022.
- Critical Reviews in Food Science and Nutrition (Crit Rev Food Sci Nutr). Personalizing protein nourishment. 2017.
- Molecular Nutrition & Food Research (Mol Nutr Food Res). In Vitro Fermentation of Animal and Plant Protein Isolates by the Human Gut Microbiota Under High and Low Carbohydrate Conditions. 2024.
- Nutrients (Nutrients). Effect of a Protein Supplement on the Gut Microbiota of Endurance Athletes: A Randomized, Controlled, Double-Blind Pilot Study. 2018.
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