Great service
Awesome flavor! Shakes are delicious.
By Joe
Monday, November 9, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
907 reviews
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Gainful (gainful.com) has 907 customer reviews on The Fair Hearing, with an average rating of 4.5 out of 5.
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Awesome flavor! Shakes are delicious.
By Joe
The protein blend that I received is perfect for me. It truly helps me recover after workouts and is vegan- two very important things to me. The flavor sticks are great (I haven't tried the strawberry or peanut butter because someone in the household is allergic, but all of the others are fantastic).
By Katrina
So far I'm loving the protein powder. I'm so happy to have a vegan option that doesn't taste disgusting and I really like the flavor sticks so I can have a different flavor every day. And best of all since I started using this protein powder I don't crave sweets like I used to
By Alicia
I have been using gainful for a month now and I have to say that I love it. I have been seeing results and love the fact that I can choose my flavor.
By Daniel
Great product. The fact that it's personalized is great. There's more than 2 flavors. You have access to a dietitian.
By Chris
The convenience of having personalized protein delivered to your door is incredible. Flavor sticks is a game changer, you no longer have to have the same flavor over and over until you run out!
By Kodie C.
I love this protein! Convenient, personalized, and great customer service. It's tasty, not gritty, and doesn't clump. The unflavored is great to mix into smoothies or whatever, and the flavor sticks all taste great.
By Jess
Great product. The flavor is the best in protein powders offered on the market today. I really like the convenience of changing my delivery date and talking to a nutritionist. Excellent, excellent product. The strawberry milkshake flavor packet is stupid good!
By Andi O.