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10 Best protein powder to gain weight

Welcome to our top 10 product reviews for protein powder to gain weight. We've scoured the market to bring you the best of the best, with products ranging from a 8.1 score up to a whopping 9.8 score!

Updated March 2026
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1
Athlete's Gainer Protein Powder, Natural Chocolate Flavour, 2.5 kg | Vegan and Non-GMO(Packaging May Vary)
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9.8
Exceptional

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Athlete's Gainer Protein Powder, Natural Chocolate Flavour, 2.5 kg | Vegan and Non-GMO(Packaging May Vary)

Main Highlights

42 g OF PROTEIN: Each serving of Iron Vegan Athlete's Gainer delivers 42 grams of plant-based protein with a complete amino acid profile, and is sourced from Organic Sprouted Brown Rice protein and Fermented Pea protein

MUSCLE GROWTH GAINS: IRON VEGAN Athlete’s GAINER is a plant-based, high protein, high calorie supplement formulated to support healthy weight gain. ATHLETE's GAINER provides you with 720 clean calories at a 2.85:1 carbohydrate to protein ratio so that you can gain muscle mass.

GREAT TASTE WITH A SMOOTH TEXTURE: Gone is the gritty, grainy mouth feel of a typical vegan protein. In its place is a smooth, delicious flavour and a creamy texture that will almost certainly surprise you. This great tasting, smooth formula is formulated for ingredient-conscious athletes to build muscle. Athlete's Gainer is tested for banned substances and certified by Informed Sport so even the most elite athlete's can enjoy the power of plant-fueled performance.

CLEAN, REAL FOOD INGREDIENTS: Athlete's Gainer provides you with 42 grams of protein, 12 grams of fibre, and only 1 gram of sugar per serving! With added greens, fruit concentrates, sea vegetables, plant oils, and sprouted grains, this plant-based gainer helps to fuel your muscle growth so you can perform at a high level. Real food ingredients, real fuel. Made in Canada from imported & domestic ingredients.

TESTED FOR SPORT: Athlete's Gainer is tested for banned substances and certified by Informed Sport so even the most elite athlete's can enjoy the power of plant-fueled performance.

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9.8
Exceptional
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2
Athlete's Gainer Protein Powder, Natural Vanilla Flavour, 2.5 kg | Vegan and Non-GMO
9.6
Excellent

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Athlete's Gainer Protein Powder, Natural Vanilla Flavour, 2.5 kg | Vegan and Non-GMO

Main Highlights

42 g OF PROTEIN: Each serving of Iron Vegan Athlete's Gainer delivers 42 grams of plant-based protein with a complete amino acid profile, and is sourced from Organic Sprouted Brown Rice protein and Fermented Pea protein.

MUSCLE GROWTH GAINS: IRON VEGAN Athlete’s GAINER is a plant-based, high protein, high calorie supplement formulated to support healthy weight gain. ATHLETE's GAINER provides you with 720 clean calories at a 2.85:1 carbohydrate to protein ratio so that you can gain muscle mass.

GREAT TASTE WITH A SMOOTH TEXTURE: Gone is the gritty, grainy mouth feel of a typical vegan protein. In its place is a smooth, delicious flavour and a creamy texture that will almost certainly surprise you. This great tasting, smooth formula is formulated for ingredient-conscious athletes to build muscle. Athlete's Gainer is tested for banned substances and certified by Informed Sport so even the most elite athlete's can enjoy the power of plant-fueled performance.

CLEAN, REAL FOOD INGREDIENTS: Athlete's Gainer provides you with 42 grams of protein, 12 grams of fibre, and only 1 gram of sugar per serving! With added greens, fruit concentrates, sea vegetables, plant oils, and sprouted grains, this plant-based gainer helps to fuel your muscle growth so you can perform at a high level. Real food ingredients, real fuel. Made in Canada from imported & domestic ingredients.

TESTED FOR SPORT: Athlete's Gainer is tested for banned substances and certified by Informed Sport so even the most elite athlete's can enjoy the power of plant-fueled performance.

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9.6
Excellent
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One Clear Winner spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own.

About One Clear Winner

How We Tested

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

Learn more about testing

51

Products Considered

62

Consumers Consulted

24

Hours Researched

Why Trust One Clear Winner?

One Clear Winner spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own.

About One Clear Winner

How We Tested

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

Learn more about testing

51

Products Considered

62

Consumers Consulted

24

Hours Researched