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

Gold Standard 100% Whey

Diet Whey Lean Protein

Serious Gainz

Serious Mass

Serious Protein

Platinum Hydro Whey

Instant Mass Heavyweight
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 |
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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.
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