10 Best weight gainers of 2026

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1

Optimum Nutrition

Optimum Nutrition Gold Standard Pro Gainer Protein, Double Chocolate, 10 LB
Key specs
- is discontinued by manufacturer:No
- product dimensions:11.5 x 6 x 17 inches 10.19 Pounds
- country of origin:USA
- asin:B002DYIZM6
- date first available:April 28, 2004
9.7

Exceptional

Our Rating

9.3
Flavor

9.3
quality of ingredients

8.4
worth the money
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Value for Money

2

Optimum Nutrition
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Chocolate 12LB
Main highlights

High Calorie and Protein Formula for Mass Gain
Delivers over 1,200 calories and 50g protein per serving, plus 20+ vitamins and minerals including immune-supporting Vitamin C and Zinc.

Perfect for Weight Gain and Custom Recipe Blends
Ideal for individuals focused on increasing weight or muscle mass; easily blend with fruits, nuts, or other foods for extra calories.

Customers Praise Its Effective Support for Immune Health
Many appreciate the addition of Vitamin C and Zinc for added nutritional and immune health value in their weight gain routine.
9.4

Excellent

Our Rating
3

Optimum Nutrition
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Chocolate, 6LB
Main highlights

High Calorie and Protein Content
Each 2-scoop serving provides over 1,200 calories and 50 grams of protein, supporting mass gain and muscle building.

Versatile Customization for Diet Needs
Mix with fruits, nuts, or peanut butter for tailored nutrition and enhanced calorie intake.

Immune Support with Vitamin C and Zinc
Praised by users for its inclusion of over 20 vitamins and minerals, boosting immune health while supporting weight gain.
9.1

Excellent

Our Rating
4

Dymatize
Dymatize Super Mass Gainer Protein Powder, Gourmet Vanilla, 52g Protein, 1g Creatine, 1280 Calories, 10.7g BCAAs, 245g Carbs, Contains Whey Protein, Isolate, and Casein (16 Servings)
Main highlights

High Protein Content
52 grams of protein per serving, including fast, medium, and slow digesting proteins for muscle support.

Ideal for Hard Gainers
1280 calories and 245g carbs per serving to help even the hardest gainers pack on mass.

Great Taste
Many customers praise the flavor, often comparing it to a milkshake and noting it mixes well with milk or water.
Key specs
- is discontinued by manufacturer:No
- product dimensions:15.5 x 11.5 x 5 inches 12 Pounds
- country of origin:USA
- asin:B005GHHLH2
- date first available:August 8, 2011
9.0

Excellent

Our Rating

8.4
worth the money

8.4
quality of ingredients

8.2
Simple to use
5

Optimum Nutrition
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vanilla, 6LB
Main highlights

High Calorie Blend for Mass Gain
Each 2-scoop serving provides over 1,200 calories, 50g protein, and 250g carbohydrates, along with 22 vitamins and minerals for comprehensive nutrition.

Versatile Shake Customization
Designed to blend with fruits, nuts, or peanut butter for added calories, ideal for those needing to increase their daily intake easily.

Immune Support Noted by Users
Includes Vitamin C and Zinc, frequently praised for supporting immune health in addition to aiding weight gain.
8.9

Very Good

Our Rating
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6

Optimum Nutrition
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vanilla, 12LB
Main highlights

High calorie and protein formula for weight gain
Provides 1,250 calories and 50g protein per 2-scoop serving along with over 250g carbs, 25 vitamins and minerals, creatine, and glutamine.

Ideal for individuals seeking calorie-dense nutrition
Perfect for those with high-calorie needs or who have difficulty gaining or maintaining weight.

Customers praise nutrient blend and versatility
Users appreciate the comprehensive nutrition and the ability to blend with fruits, peanut butter, and nuts for variety.
8.6

Very Good

Our Rating
7

Supragenix
CB-1 Weight Gainer Pills (90 Count) | Clinically Tested Appetite Stimulant
Main highlights

Clinically backed proven weight gain results
CB-1 Weight Gainer is clinically tested, delivering superior results in weight gain and mass-building when used consistently as directed.

Ideal for men and women seeking curves or muscle
Supports appetite increase and targeted weight/mass gain for both men looking to bulk up and women wanting fuller hips, thighs, and booty.

Praised for appetite boost and visible transformation
Frequently praised for effective appetite boosting and supporting visible gains in body mass, shape, and muscle for diverse users.
8.3

Good

Our Rating
8

BOOST
BOOST Very High Calorie Nutritional Drink, Chocolate, 8 Fl Oz, 24 pk
Main highlights

530 Calorie Serving for Energy and Weight Support
Each 8 fl oz serving delivers 530 calories with 22 grams of protein and 26 vitamins and minerals, ideal for those seeking a calorie-dense nutritional supplement.

Ideal for Weight Gain or Maintenance Needs
Perfect snack or mini meal for individuals looking to gain or maintain weight, offering convenient support in a ready-to-drink format.

Great Taste Praised in Nutritional Drink
Enjoyed for its great chocolate flavor, making it easy for users to meet nutritional goals without sacrificing taste.
Key specs
- Vitamins & Minerals:26
- Calories per Serving:530
- Flavor:Chocolate
- Serving Size:8 fl oz
- Pack Size:24
8.1

Good

Our Rating
9

NAKED
NAKED Chocolate Mass Gainer - All Natural Weight Gainer Protein Powder - 8lb Bulk, NSF Certified, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,360 Calories
Main highlights

Key Features
50g Protein, 251g Carbs, 1,360 Calories per serving, with all-natural ingredients including Naked Whey, Casein, and Organic Raw Cacao.

Ideal Use
Perfect for athletes seeking clean mass gain, supports protein synthesis throughout the day with multi-phase protein.

Customer Praise
Users love its clean ingredients list with no artificial additives, highlighting improved recovery and taste as standout benefits.
Key specs
- is discontinued by manufacturer:No
- product dimensions:N/A
- country of origin:N/A
- asin:B08J8BKCZ5
- date first available:March 9, 2015
8.0

Good

Our Rating

9.1
quality of ingredients

8.7
Flavor

8.2
worth the money
10

NAKED
NAKED Mass - Natural Weight Gainer Protein Powder - 8 LB Bulk, NSF Certified, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,250 Calories per Serving
Main highlights

High Calorie Clean Nutrition
Delivers 1,250 calories, 50g protein, and only 5g sugar per serving with just three simple ingredients for optimal, clean weight gain.

Best For Serious Mass Gaining and Recipes
Ideal for hard gainers and anyone seeking bulk through customizable shakes, smoothies, and protein bars.

Praised for All-Natural Formula
Users appreciate the absence of artificial ingredients and the product’s focus on quality, natural nutrition.
7.9

Good

Our Rating

10 Best weight gainers of 2026

1

Optimum Nutrition Gold Standard Pro Gainer Protein, Double Chocolate, 10 LB

9.3

9.3

8.4

How do we rank?

How do we rank?

Analyzing top stores

2

Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Chocolate 12LB

3

Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Chocolate, 6LB

4

Dymatize Super Mass Gainer Protein Powder, Gourmet Vanilla, 52g Protein, 1g Creatine, 1280 Calories, 10.7g BCAAs, 245g Carbs, Contains Whey Protein, Isolate, and Casein (16 Servings)

8.4

8.4

8.2

5

Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vanilla, 6LB

6

Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vanilla, 12LB

7

CB-1 Weight Gainer Pills (90 Count) | Clinically Tested Appetite Stimulant

8

BOOST Very High Calorie Nutritional Drink, Chocolate, 8 Fl Oz, 24 pk

9

NAKED Chocolate Mass Gainer - All Natural Weight Gainer Protein Powder - 8lb Bulk, NSF Certified, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,360 Calories

9.1

8.7

8.2

10

NAKED Mass - Natural Weight Gainer Protein Powder - 8 LB Bulk, NSF Certified, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,250 Calories per Serving

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