Looking for the best high-calorie gainer to help you build muscle and gain weight? We’ve compiled a list of the top 10 high-calorie gainers, carefully reviewed for taste, nutrition, and effectiveness, to help you find the perfect match for your fitness goals.
Gaining weight or building muscle can be tough, especially if you’re a hard gainer. The right high-calorie gainer can make all the difference, packing the nutrients and energy you need to see results. Whether you’re an athlete, a fitness enthusiast, or just looking to add pounds, we’ve got you covered.
We’ve tested and reviewed the best high-calorie gainers on the market, focusing on taste, nutrition, and effectiveness. From protein-rich shakes to calorie-dense drinks, these products are designed to help you reach your goals faster. Let’s dive in and find the perfect match for your needs!
List of Top 10 High Calorie Gainer
| Image | Title | Best For | Price |
|---|---|---|---|
![]() |
BOOST Very High Calorie Nutritional Drink – Helps Weight Gain & Maintenance – 530 Calories – 26 Vitamins & Minerals – 22 g Protein – Calorie-Dense Nutritional Drink – Chocolate – 8 fl oz (Pack of 24) |
BOOST Very High Calorie Nutritional Drink is perfect for people who need extra calories and nutrients to gain or maintain weight. It’s great for those with busy lives or trouble eating enough. |
|
![]() |
Rule 1 Proteins Mass Gainer – High-Calorie Weight Gain Formula with 1,220+ Calories, 250g+ Complex Carb Blend, 40g All-Whey Protein Per Serving (8 Servings, Strawberries & Crème) |
This mass gainer is perfect for anyone looking to gain weight and build muscle. It’s ideal for active people who need extra calories and protein to support their goals. |
|
![]() |
Mutant Mass Extreme Gainer Protein Powder – High Calorie Weight Gainer with Whey Protein & Glutamine for Muscle Mass, Bulking & Weight Gain – Cookies & Cream 6 lbs |
This Mutant Mass Extreme Gainer Protein Powder is perfect for hard gainers and athletes looking to bulk up and gain muscle mass. It’s ideal for those in bulking phases who need a high-calorie, easy-to-mix shake to support their goals. |
|
![]() |
Mutant Mass Extreme 2500 – High Calorie Mass Gainer Whey Protein Powder for Muscle Building and Weight Gain – Clean Calories with Whole Food Carbs – Vanilla Ice Cream 2.2 lb |
Mutant Mass Extreme 2500 is perfect for hard gainers who struggle to add size and break through plateaus. It’s also ideal for athletes seeking clean, high-calorie fuel to build muscle and recover faster. |
|
![]() |
Boost Very High Calorie Vanilla Nutritional Drink – 22g Protein, 530 Nutrient Rich Calories, 8 Fl Oz (Pack of 24) |
BOOST Very High Calorie Vanilla Nutritional Drink is perfect for anyone needing extra calories and protein to gain or maintain weight. It’s great for busy people who need a quick, nutrient-rich snack or mini meal. |
|
![]() |
BOOST Very High Calorie Nutritional Drink – Helps Weight Gain & Maintenance -530 Calories -26 Vitamins & Minerals – 22 g Protein – Variety Pack – Vanilla, Chocolate & Strawberry – 8 fl oz (Pack of 24) |
BOOST Very High Calorie Nutritional Drink is perfect for anyone looking to gain or maintain weight in a convenient, nutrient-packed way. It’s great for busy individuals who need a quick, high-calorie snack or mini meal with essential vitamins, minerals, and protein. |
|
![]() |
Rule 1 Proteins Mass Gainer – High-Calorie Weight Gain Formula with 1,220+ Calories, 250g+ Complex Carb Blend, 40g All-Whey Protein Per Serving (8 Servings, Vanilla Crème) |
This mass gainer is perfect for anyone looking to gain serious weight and build muscle. It’s ideal for hardgainers or active individuals who need extra calories and protein to fuel their goals. |
|
![]() |
RIVAL NUTRITION Clean Gainer Soft Serve Vanilla High-Protein Lean Gainer Powder I 5 Lb, 16 Servings I 550 Calories, 30g Protein, 97g Multi-Source Carbs Per Serving I Natural Flavors, Clean Ingredients |
This lean gainer powder is perfect for anyone who wants to build muscle and fuel their workouts with clean, natural ingredients. It’s great for active people looking for quality calories, premium proteins, and healthy carbs without added sugars or artificial stuff. |
|
![]() |
Rule 1 Proteins Clean Gainer – High-Protein Lean Gain Formula with 560 Calories, 30g of Full-Spectrum Protein, Over 90g Carbs, Under 6g of Fat (15 Servings, Chocolate Fudge) |
Rule 1 Proteins Clean Gainer is perfect for anyone looking to gain lean muscle mass and boost their strength. It’s ideal for active individuals who need extra calories, protein, and carbs to support their training goals. |
|
![]() |
MHP UYM XXXL 1350 Mass Building Weight Gainer, Muscle Mass Gains, w/50g Protein, High Calorie, 11g BCAAs, Leucine, Milk Chocolate, 8 Servings |
This weight gainer is perfect for anyone who wants to build muscle and gain weight. It’s great for hardgainers or active people looking for extra calories and protein to fuel their goals. |
Detailed Reviews
Discover the top 10 High Calorie Gainers carefully selected for maximum results. Each product is expert-reviewed and backed by real user feedback, ensuring you get the best value. Whether you’re aiming to build muscle or gain weight, this guide has you covered. Dive in to find the perfect match for your fitness goals!
1. BOOST Very High Calorie Nutritional Drink – Helps Weight Gain & Maintenance – 530 Calories – 26 Vitamins & Minerals – 22 g Protein – Calorie-Dense Nutritional Drink – Chocolate – 8 fl oz (Pack of 24)

BOOST Very High Calorie Nutritional Drink is a convenient and nutrient-packed solution for weight gain and maintenance. It’s a delicious chocolate drink that fits easily into your daily routine.
Each 8 fl oz serving packs 530 calories, 22 g of protein, and 26 vitamins & minerals. It supports muscle health, immune function, and bone strength. Enjoy it as a snack or mini meal.
This calorie-dense drink is great-tasting and easy to enjoy. Drink it over ice for a lighter texture. It’s part of the BOOST family, designed to meet your nutritional needs.
| Pros | Cons |
|---|---|
|
|
Perfect For:
BOOST Very High Calorie Nutritional Drink is perfect for people who need extra calories and nutrients to gain or maintain weight. It’s great for those with busy lives or trouble eating enough.
Ready to Purchase?
2. Rule 1 Proteins Mass Gainer – High-Calorie Weight Gain Formula with 1,220+ Calories, 250g+ Complex Carb Blend, 40g All-Whey Protein Per Serving (8 Servings, Strawberries & Crème)

Rule 1 Proteins Mass Gainer is a high-calorie weight gain formula designed to help you pack on pounds. Each serving delivers 1,220+ calories, 250g+ complex carbs, and 40g of all-whey protein.
With a 6:1 carb-to-protein ratio, this formula supports serious weight gain. It’s enhanced with creatine and 9g of naturally occurring BCAAs per serving for better results.
Made in the USA, GMP certified, and free from banned substances. Easy to mix with water, milk, or your favorite drink.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This mass gainer is perfect for anyone looking to gain weight and build muscle. It’s ideal for active people who need extra calories and protein to support their goals.
Ready to Purchase?
3. Mutant Mass Extreme Gainer Protein Powder – High Calorie Weight Gainer with Whey Protein & Glutamine for Muscle Mass, Bulking & Weight Gain – Cookies & Cream 6 lbs

Mutant Mass Extreme Gainer is a high-calorie protein powder designed for weight gain and muscle mass. It’s perfect for hard gainers and athletes in bulking phases. Each serving packs dense calories to meet daily needs.
Made with quality whey protein, it supports muscle growth and recovery. Added glutamine boosts training performance and strength goals. This formula helps fuel intense workouts and muscle repair.
It mixes easily into a rich, great-tasting shake. Use it post-workout, between meals, or as a calorie-dense supplement. Ideal for daily use with balanced diet and resistance training.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This Mutant Mass Extreme Gainer Protein Powder is perfect for hard gainers and athletes looking to bulk up and gain muscle mass. It’s ideal for those in bulking phases who need a high-calorie, easy-to-mix shake to support their goals.
Ready to Purchase?
4. Mutant Mass Extreme 2500 – High Calorie Mass Gainer Whey Protein Powder for Muscle Building and Weight Gain – Clean Calories with Whole Food Carbs – Vanilla Ice Cream 2.2 lb

Mutant Mass Extreme 2500 is a high-calorie mass gainer designed for hard gainers. It packs 1,270 calories per serving to help you build muscle and gain weight.
Each serving includes 46g of pure whey protein from three premium sources. It also uses complex carbs from real whole foods like sweet potato and oats.
This formula is naturally rich in BCAAs and glutamine, supporting muscle growth and recovery. It mixes easily with a rich vanilla ice cream flavor for a gourmet taste.
| Pros | Cons |
|---|---|
|
|
Perfect For:
Mutant Mass Extreme 2500 is perfect for hard gainers who struggle to add size and break through plateaus. It’s also ideal for athletes seeking clean, high-calorie fuel to build muscle and recover faster.
Ready to Purchase?
5. Boost Very High Calorie Vanilla Nutritional Drink – 22g Protein, 530 Nutrient Rich Calories, 8 Fl Oz (Pack of 24)

BOOST Very High Calorie Vanilla Drink is a nutrient-rich snack. It has 530 calories and 22g protein in every 8 fl oz. This drink helps with weight gain or maintenance.
It’s packed with 26 vitamins and minerals. These support immune, brain, and bone health. It’s a delicious way to get key nutrients.
Enjoy it over ice for a lighter texture. It’s part of the BOOST family, offering great nutrition for everyday needs.
| Pros | Cons |
|---|---|
|
|
Perfect For:
BOOST Very High Calorie Vanilla Nutritional Drink is perfect for anyone needing extra calories and protein to gain or maintain weight. It’s great for busy people who need a quick, nutrient-rich snack or mini meal.
Ready to Purchase?
6. BOOST Very High Calorie Nutritional Drink – Helps Weight Gain & Maintenance -530 Calories -26 Vitamins & Minerals – 22 g Protein – Variety Pack – Vanilla, Chocolate & Strawberry – 8 fl oz (Pack of 24)

BOOST Very High Calorie Nutritional Drink helps you gain or maintain weight easily. Each 8 fl oz serving packs 530 calories and 22 g of protein. It’s a convenient way to get nutrient-packed support.
This drink includes 26 vitamins and minerals for immune, brain, and bone health. It’s great-tasting and comes in vanilla, chocolate, and strawberry flavors. Enjoy it over ice for a less thick texture.
The BOOST family offers options for everyone’s needs. Whether you want more calories or better nutrition, there’s a BOOST drink for you. It’s a simple way to stay healthy and strong.
| Pros | Cons |
|---|---|
|
|
Perfect For:
BOOST Very High Calorie Nutritional Drink is perfect for anyone looking to gain or maintain weight in a convenient, nutrient-packed way. It’s great for busy individuals who need a quick, high-calorie snack or mini meal with essential vitamins, minerals, and protein.
Ready to Purchase?
7. Rule 1 Proteins Mass Gainer – High-Calorie Weight Gain Formula with 1,220+ Calories, 250g+ Complex Carb Blend, 40g All-Whey Protein Per Serving (8 Servings, Vanilla Crème)

Rule 1 Proteins Mass Gainer helps you gain weight fast. Each serving has 1,220+ calories, 250g+ carbs, and 40g whey protein. It’s perfect for building muscle and size.
This formula has a 6:1 carb-to-protein ratio for quick gains. It’s made in the USA with clean ingredients and no banned substances.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This mass gainer is perfect for anyone looking to gain serious weight and build muscle. It’s ideal for hardgainers or active individuals who need extra calories and protein to fuel their goals.
Ready to Purchase?
8. RIVAL NUTRITION Clean Gainer Soft Serve Vanilla High-Protein Lean Gainer Powder I 5 Lb, 16 Servings I 550 Calories, 30g Protein, 97g Multi-Source Carbs Per Serving I Natural Flavors, Clean Ingredients

Rival Nutrition Clean Gainer is a high-protein, lean gainer powder designed to support muscle growth and recovery. It offers 550 calories and 30g of protein per serving, perfect for active individuals.
Made with natural flavors and clean ingredients, it’s gluten-free and sweetened with stevia. Contains no added sugars, artificial colors, or fillers, ensuring a healthy choice.
Easy to prepare, third-party tested, and made in the USA. Safe for sport and quality assured.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This lean gainer powder is perfect for anyone who wants to build muscle and fuel their workouts with clean, natural ingredients. It’s great for active people looking for quality calories, premium proteins, and healthy carbs without added sugars or artificial stuff.
Ready to Purchase?
9. Rule 1 Proteins Clean Gainer – High-Protein Lean Gain Formula with 560 Calories, 30g of Full-Spectrum Protein, Over 90g Carbs, Under 6g of Fat (15 Servings, Chocolate Fudge)

Rule 1 Proteins Clean Gainer is a high-protein lean gain formula designed to help you build size and strength. It packs 560 quality calories into each serving, making it a great choice for those looking to gain muscle mass.
Each serving includes 30g of full-spectrum protein, over 90g of quality carbs, and under 6g of fat. The carbs come from simple and complex sources, providing energy and glycogen recovery. The protein blend includes whey, milk isolate, and micellar casein for muscle repair.
It’s loaded with essential amino acids and made in GMP-certified facilities in the USA. Available in 4 flavors and 5 or 10-pound sizes, it’s easy to mix with water, milk, or your favorite beverage. Enjoy it as a shake or smoothie for a delicious, muscle-building boost.
| Pros | Cons |
|---|---|
|
|
Perfect For:
Rule 1 Proteins Clean Gainer is perfect for anyone looking to gain lean muscle mass and boost their strength. It’s ideal for active individuals who need extra calories, protein, and carbs to support their training goals.
Ready to Purchase?
10. MHP UYM XXXL 1350 Mass Building Weight Gainer, Muscle Mass Gains, w/50g Protein, High Calorie, 11g BCAAs, Leucine, Milk Chocolate, 8 Servings

MHP UYM XXXL 1350 is a mass-building weight gainer designed to help you pack on hard, dense muscle. Each serving delivers 1350 nutrient-dense calories to fuel your gains.
This formula optimizes insulin response, maximizing muscle growth. It also contains 50g of protein for fast and sustained release, plus 11g of BCAAs including leucine for powerful muscle support.
Milkshake-like flavors, Informed Choice trusted, and 8 servings per container.
| Pros | Cons |
|---|---|
|
|
Perfect For:
This weight gainer is perfect for anyone who wants to build muscle and gain weight. It’s great for hardgainers or active people looking for extra calories and protein to fuel their goals.
Ready to Purchase?
Buying Guide
Gaining weight or building muscle can be tough, especially if you’re a hard gainer. The right high-calorie gainer can make all the difference, helping you reach your goals faster.
Choosing the best high-calorie gainer can feel overwhelming, but we’re here to help. We’ve tested and reviewed top products, focusing on taste, nutrition, and effectiveness. Here’s what to consider when making your choice:
- Calorie Content: Look for products with 500+ calories per serving to support weight gain and muscle building. Higher calorie options like 1,200+ calories are ideal for hard gainers.
- Protein Quality: Choose gainers with 20g+ protein per serving, preferably from whey or multi-source blends, to support muscle growth and recovery.
- Carbohydrates: Opt for complex carbs from whole foods like oats or sweet potatoes for sustained energy and glycogen recovery.
- Added Nutrients: Products with vitamins, minerals, BCAAs, or glutamine offer extra support for immune health, training performance, and muscle repair.
- Taste & Mixability: Pick a flavor you’ll enjoy, and ensure it mixes well with water, milk, or your favorite drink for a smooth, great-tasting shake.
- Clean Ingredients: Avoid artificial additives, sugars, and banned substances. Look for natural flavors, stevia, and third-party testing for quality assurance.
- Convenience: Ready-to-drink options like BOOST are perfect for on-the-go, while powders offer flexibility in serving size and preparation.
With these factors in mind, you’ll find the perfect high-calorie gainer to fuel your journey. Let’s get started!