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PERFORMANCE BOOST
Fiber
PERFORMANCE BOOST
Fiber
Fiber is a supplement that supports regularity, gut health, satiety, and nutrient absorption. Ours is formulated with a scientist-recommended dosage of beta glucan — a heart-healthy soluble fiber derived from oats. Blend into your Gainful Protein or morning coffee to kickstart the day.
Quantity
1
14 servings
per container
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Gut Friendly

Oat bran fiber supports satiety and nutrient absorption. It is also high in beta glucans, a prebiotic fiber shown to help improve cholesterol.

Avoid Bloat

Fiber is vital for a healthy digestive system, and is lacking in most people’s diet. It supports regularity, proper microbial levels, and ease of eliminations.

Our Promise

Expert Driven FormulasExpert Driven FormulasClean recipes, formulated by nutrition and fitness experts for maximum effectiveness.
Supports Your Personal GoalsSupports Your Personal GoalsCustomized protein blends that help you meet your goals and make personal gains.
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Registered Dietitians1:1 access to our R.Ds who will guide & provide you with resources you need to feel and perform your best.
Clean Label PromiseClean Label PromiseWe’re committed to clean ingredients -- free from preservatives, artificial flavors, sweeteners or dyes.
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Personalized protein Powder
“My package came and it was so easy to navigate. Made just for me and my special nutritional needs. The powder formula mixes so well! There no chalky taste and I love that I can mix up the flavors! I love the salted caramel.”Janice
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Personalized PRE-WORKOUT
“This is by far the best pre workout. After trying over 15 different pre-workouts, Gainful is finally the best. It gives me a great amount of energy without making me feel jittery or itchy. I don’t get any of the negative side effects either.”Jason
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Personalized HYDRATION
“I've tried A LOT of drinks & Gainful has the perfect amount of nutrients that hydrate me super quickly. I sprint & living in NYC, the summers are insanely hot. I always have these while I'm running! And they taste great.”Arica
Verified Gainful Subscriber

Personalized Health By Humans, Not Bots

We know navigating a health journey can be overwhelming. Every Gainful subscription includes free, 1-on-1 access to a Registered Dietitian, who can:
Review your nutrition
Review your nutritionProvide suggestions on your diet and eating habits
Offer personalized advice
Offer personalized adviceTo help you get the most out of your protein
Recommend lifestyle improvements
Recommend lifestyle improvementsTailored to your goals
Mary Albus

Mary Albus

Registered Dietitian
Matt Mazzino

Matt Mazzino

Registered Dietitian
Mary Albus

Mary Albus

Registered Dietitian
Matt Mazzino

Matt Mazzino

Registered Dietitian

Complete Your System

Protein PowderCUSTOMIZEDProtein PowderCustomize to your dietary preference and goals

Flavor: Madagascar Vanilla

+ 6
Add | $45
HydrationCUSTOMIZEDHydrationCustomize to your caffeine preference and sweat levels

Flavor: Strawberry Lemonade

Add | $30
Pre-WorkoutCUSTOMIZEDPre-WorkoutCustomize to your caffeine preference and exercise intensity

Flavor: Watermelon

Add | $26
CreatinePerformance boostCreatineAdd for muscle growth and cognitive benefits
CollagenPerformance boostCollagenAdd for overall joint health and tissue health
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These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Gainful
Sign up to receive The Rundown, Gainful's monthly newsletter
Sign up to receive The Rundown, Gainful's monthly newsletter
Formulated for you.
LEARNOur MissionOur IngredientsSustainabilityReviewsPersonal Trainer Program
SHOPProtein PowderHydrationPre-workoutPerformance BoostsTarget Line
MOREHelp CenterCareersCalifornia Privacy NoticeCalifornia Consumer Privacy Act (CCPA) Opt-Out IconYour Privacy Choices
CONNECT
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These statements have not been evaluated by the Food and Drug Administration.
This product is not intended to diagnose, treat, cure or prevent any disease.

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