300,000+ Happy CustomersFeel & perform your best.
Personalized supplements made for you.
Shop By Product
How it works
Tell us about yourself
Customize your products
connect with our dietitians
Embrace The Gains
Discover how Gainful's performance nutrition transformed our customers' fitness, energy, and well-being.
Are hitting their workout goals.
Are sticking to their fitness routine.
Have noticed an increase in muscle mass.
Feel Gainful has improved their overall health.
Real People.
Real Conversations.
Unlimited, complimentary access to our team of Registered Dietitians
How they can help:
Learn what foods to prioritize or limit based on your needs - Guidance on food allergies and intolerances for your body
- Set calorie or macronutrient targets for safe weight management
- Determine the best strategies to track your progress
Discover Our System
Formulated with simple and effective ingredients that work for you based on your diet, body composition and lifestyle habits, our protein formulas help you achieve a wide range of fitness goals, from weight loss to building muscle.
Contains all 9 essential amino acids to benefit your whole body
19g to 26g of protein per serving to support muscle performance and recovery
Whey, Keto, and plant-based formulas to fit your dietary needs
No gluten, soy, fillers or artificial flavors, dyes or sweeteners
Your Personalized Pre-Workout blend is designed to maximize endurance and minimize recovery time, making your workouts more impactful.
Formulated with caffeine, L-Theanine, L-Citrulline, Beta Alanine and BCAAs to fuel your workout and supercharge your recovery
2 refreshing flavors: Sour Watermelon and Strawberry Lemonade
Perform at your best with hydration formulas that deliver an effective amount of electrolytes based on your workout frequency, intensity, and sweat levels.
High-performance formula of 4 electrolytes and cane sugar to hydrate faster than water alone
21 convenient single-serve packs—just add to 8-16oz of water
Caffeinated option contains 150mg of caffeine and 250mg of L-Theanine for a jitter-free, clean energy boost
3 refreshing flavors: Tropical Mango (new flavor!), Lemon-Lime, and Strawberry Lemonade
Non-GMO and 100% plant-based, with no artificial flavors, colors, or sweeteners
Engineered for all types of athletes — it supports muscle strength, short energy bursts, aids in recovery, and may increase lean body mass.
Reduces muscle soreness and aids in recovery
Supports interval training and enables you to break away from the pack
Supports cognitive function
Contrary to popular belief, it does a lot more than simply growing healthier hair and stronger nails. Collagen promotes elasticity, strengthens connective tissues (e.g., tendons, ligaments, cartilage), and supports muscle recovery.
A combination of amino acids that supports connective tissues
Scientist-recommended dosage supports immune function and collagen absorption
Grass-fed, non-GMO, gluten-free, dairy-free, no sugar added, nothing artificial
Whole-body health starts in your gut. Fiber supports nutrient absorption, satiation, healthy regularity, and ease of eliminations. Ours is formulated with a scientist-recommended dosage of beta glucan — a heart-healthy soluble fiber derived from oats.
Supports digestion and a healthy microbiome
Keeps you feeling full and reduces cravings
Prebiotic fibers help support absorption of key minerals
Protein
Pre-workout
Over 1 million personalized systems delivered
4.7 stars across 2.7k reviews“Best customizable protein powder of 2023”
“Gainful stands apart for their personalized approach.”
“Gainful keeps it honest. You’re told exactly what’s going into your protein blend before you even place your order.”
“Gainful will work with you to make a blend of ingredients suitable for your lifestyle.”
Over 1 million personalized systems delivered
4.7 stars across 2.7k reviews“Best customizable protein powder of 2023”
Happiness Guarantee
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.
6 West 18th St, #10F
New York, NY 10011