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Top 10 Mass Gainer Proteins

Mass gainers are calorie‑dense shakes designed for high‑energy needs. Here are some of the most purchased options on Amazon, recognised for their protein content and customer demand.

  • ✅ Updated September 2025
  • 🏆 Best-Selling
  • 📝 Editorial Reviews & Comparisons
Jamie’s Tip: Large servings can be heavy — many customers split them into smaller shakes.
See Rankings ↓
1
Low SugarGluten Free
Optimum Nutrition Gold Standard 100% Whey
Optimum Nutrition

Gold Standard 100% Whey

4.6 / 5 (110,000 reviews)
Low Sugar | 24 g Protein | 5.5 g BCAAs | Double Rich Chocolate | 29 Servings
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2
Gluten Free
Dymatize ISO100 Hydrolyzed Whey
Dymatize

ISO100 Hydrolyzed

4.6 / 5 (20,000 reviews)
25 g Protein | 5.7 g BCAAs | 70 Servings | Gluten Free
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3
Low SugarLow Calorie
PhD Diet Whey Lean Protein
PhD

Diet Whey Lean Protein

4.4 / 5 (5,000 reviews)
20 g Protein | 123 Calories | Low Sugar | L‑Carnitine, Green Tea & CLA | 62 Servings
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4
Bestseller
Serious Gainz Mass Gainer
The Bulk Protein Co.

Serious Gainz

4.3 / 5 (900 reviews)
Mega Mass Blend | 5 kg Tub | 40 Servings | Chocolate Flavour
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5
High Carb
Optimum Nutrition Serious Mass
Optimum Nutrition

Serious Mass

4.5 / 5 (9,000 reviews)
50 g Protein | 1,260 Calories | 252 g Carbs | Chocolate Flavour | 16 Servings
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6
High Carb
Serious Protein 4kg Banana
The Bulk Protein Co.

Serious Protein

4.4 / 5 (500 reviews)
Banana Flavour | 4 kg Tub | 133 Servings | Balanced Protein & Carb Blend
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7
Gluten Free
Optimum Nutrition Platinum Hydro Whey
Optimum Nutrition

Platinum Hydro Whey

4.5 / 5 (2,000 reviews)
Hydrolysed Whey Isolate | 30 g Protein | 9.5 g BCAAs | 40 Servings | Milk Chocolate Flavour
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8
High Carb
Reflex Instant Mass Heavyweight
Reflex Nutrition

Instant Mass Heavyweight

4.4 / 5 (1,500 reviews)
60 g Protein | 195 g Carbs | 1,088 kcal | Chocolate Perfection | 2.7 kg Tub
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9
High Carb
USN Muscle Fuel Anabolic
USN

Muscle Fuel Anabolic

4.5 / 5 (3,000 reviews)
54 g Protein | All‑in‑One Mass Gainer | 2 kg Tub | Strawberry Flavour
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10
High Carb
SCI-MX Total Mass
SCI-MX

Total Mass

4.3 / 5 (1,000 reviews)
32 g Protein | 81 g Carbs | 478 kcal | Chocolate Flavour | 2 kg Bag
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Top Selling Mass Gainer Proteins (Compared Side by Side)

🥇 Optimum Nutrition Gold Standard 100% Whey
Double Rich Chocolate
🥈 Dymatize ISO100
Hydrolyzed
🥉 PhD Diet Whey Lean Protein
Belgian Chocolate
Protein (g) 24 g 25 g 17 g
Calories 120 kcal 110 kcal 91 kcal
Type Isolate & Concentrate Blend Hydrolysed Whey Isolate Whey Blend with Milk Proteins
Texture Milkshake‑like & smooth Light & clear Creamy & smooth
Sweetener Acesulfame K & Sucralose Sucralose & Stevia Sucralose
Sugar Level Low Low Low
Carbs Level Low Low Low
Fat Level Low Low Low
Fibre Level Low Low Low
Servings 29 70 40
Extras Isolate & concentrate with peptides; 5.5 g BCAAs & 4 g glutamine Hydrolysed isolate with 5.7 g BCAAs & leucine; fast absorption L‑carnitine, green tea, CLA & flaxseed
Value for money 4.0/5 Best Value 4.5/5 3.5/5
Overall Excellent Excellent Very Good
Best for Lean Muscle Fast Absorption Weight Loss

For general comparison purposes, amounts and servings are approximate and taken from product labels. All “Value for Money” scores are editorial ratings based on the author’s independent assessment. Macro levels (Low/Medium/High) are simplified for ease of comparison. Information is for general purposes only.

FAQs

What makes a good mass gainer?

A good mass gainer typically has a high calorie content and a balance of protein and carbohydrates. Check labels for serving size and ingredients.

Will it make me fat?

Mass gainers are calorie‑dense. Consider your overall calorie needs and goals when adding them to your diet.

When should I drink it?

People incorporate mass gainer shakes at different times, such as post‑workout or between meals, based on their routines. Follow the serving suggestions on the label.

Do I need a blender?

Some mixes are very thick — a blender is helpful, but many shake up fine with water or milk.

Not trying to bulk? Explore lean whey picks for tone and performance.

See Lean Whey Picks →