
Optimum Nutrition
Gold Standard 100% Whey Protein Powder
Trusted all-rounder, but price hikes and quality decline concern.

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I second Naked rice protein. I do a mix of the naked rice protein, naked peanut butter, and naked collagen with almond milk and it's a good amount of protein.
I second Naked rice protein. I do a mix of the naked rice protein, naked peanut butter, and naked collagen with almond milk and it's a good amount of protein.
Your best bet is to get unflavored whey isolate (any brand is fine) and add your own flavors. Make a smoothie with bananas and peanut butter. But if you like flavors, Naked Nutrition makes whey protein with no fake sugar. It's my favorite brand. The double chocolate flavor is pretty good. Its less sweet than other brands that load up with sucralose
I prefer unsweetened protein powders with nothing else added. I will either just drink them down quickly or add my own flavorings. I generally rotate between MycelPro-1 (mycelium) and Sunwarrior Classic Plus unsweetened (mix of 5 different protein sources). I have also used Naked Seeds protein (mix of 4 different seed proteins) on occasion. I generally buy from the vendors directly.
I have tried it at the suggestion of my weight loss doctor to try and get more protein in my diet. I'm really sensitive to non-sugar sweeteners, so I had to comb through the brands to find one that used sugar, had good reviews, and tested for lead - I landed on Naked. It's fine. The chocolate one that had instant coffee in it is better than the non-coffee ones, so I've bought instant coffee to add to the normal powder lol. I bought too much when I first ordered (I wanted to try 3 different products) and I'm doubting I'll ever get through it all before it goes bad... can pea protein go bad?
I tried a bunch of Naked protein powders until I found one that worked. Brown Rice is usually the most digestible, so could be worth a try: https://nakednutrition.com/products/organic-brown-rice-protein-powder They also have egg protein powder and goat whey, both of which may also work. I only use unflavored protein powder with zero additives - it’s the only way to guarantee that you know whether or not it’s okay for your stomach.
I tried a bunch of Naked protein powders until I found one that worked. Brown Rice is usually the most digestible, so could be worth a try: https://nakednutrition.com/products/organic-brown-rice-protein-powder They also have egg protein powder and goat whey, both of which may also work. I only use unflavored protein powder with zero additives - it’s the only way to guarantee that you know whether or not it’s okay for your stomach.
a few unsweetened options worth trying: equip prime beef protein isolate has unsweetened versions and zero plant ingredients which removes the gos issue from pea and the fodmap concerns from rice at scale. taste is mild and the chocolate version uses cocoa not sweetener. naked beef is similar and cheaper. rice protein on its own is fine but limited in amino acid profile. mixing naked rice with naked egg white at 1 to 1 gives you a complete amino profile without sweeteners, both unflavored. for adding protein beyond smoothies: stir one scoop into oatmeal after cooking, not before because heat denatures it weird. mix into pancake or muffin batter. blend into lactose free greek yogurt with vanilla and cinnamon for a dessert. stir into mashed potatoes (sounds weird, works for savory). since your dietician is involved on the underweight piece, ask them about adding pumpkin seed butter or coconut cream to smoothies, both pack 150 to 200 cal per scoop without a big fodmap hit if your tolerances allow. those gain calories faster than just protein powder alone.
a few unsweetened options worth trying: equip prime beef protein isolate has unsweetened versions and zero plant ingredients which removes the gos issue from pea and the fodmap concerns from rice at scale. taste is mild and the chocolate version uses cocoa not sweetener. naked beef is similar and cheaper. rice protein on its own is fine but limited in amino acid profile. mixing naked rice with naked egg white at 1 to 1 gives you a complete amino profile without sweeteners, both unflavored. for adding protein beyond smoothies: stir one scoop into oatmeal after cooking, not before because heat denatures it weird. mix into pancake or muffin batter. blend into lactose free greek yogurt with vanilla and cinnamon for a dessert. stir into mashed potatoes (sounds weird, works for savory). since your dietician is involved on the underweight piece, ask them about adding pumpkin seed butter or coconut cream to smoothies, both pack 150 to 200 cal per scoop without a big fodmap hit if your tolerances allow. those gain calories faster than just protein powder alone.

Optimum Nutrition
Gold Standard 100% Whey Protein Powder
Trusted all-rounder, but price hikes and quality decline concern.

Dymatize (BellRing Brands)
ISO100 Hydrolyzed Protein Powder
High-quality hydrolyzed isolate, great taste, but pricey with sucralose concerns.

Transparent Labs
Grass-Fed Whey Protein Isolate
Clean, third-party tested isolate; premium price for quality.
Kirkland Signature (Costco)
Whey Protein
Budget king; great value, but clumpy with artificial taste concerns.

Oath Nutrition
Clear Whey Protein Powder
Refreshing, juice-like fruit flavors; pricey, low carb, but gentle.

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PEScience - Select Protein

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Optimum Nutrition - Gold Standard 100% Whey Protein Powder

Ranked #1
Optimum Nutrition - Gold Standard 100% Whey Protein Powder

Ranked #1
Optimum Nutrition - Gold Standard 100% Whey Protein Powder

Ranked #1
Oath Nutrition - Clear Whey Protein Powder

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Equip - Prime Protein