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10 Best Mass Gainers 2025 in the United States

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Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.

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Our Top Picks

#1

Winner

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

Rating
9.9
Chosen by1,146
Caloric Content
Digestive Enzymes
Flavor and Mixability

Most important from
4587 reviews

Caloric Content
This product is a solid addition to a bulking routine, providing essential calories without the typical 'gut bomb' feeling.
Digestive Enzymes
Naked Mass stands out as by far the cleanest mass gainer, leaving none of the bloated and sluggish feelings common with other brands.
Flavor and Mixability
The taste is genuinely delicious—smooth, not overly sweet, and free from the chalky, artificial aftertaste typical of some protein powders.

Naked Mass is a natural weight gainer protein powder designed to help individuals increase their calorie and protein intake efficiently. With 1,250 calories per serving, it is ideal for those struggling to gain weight. Each serving contains 50g of protein and 252g of carbohydrates, highlighting its high-calorie content essential for bulking up. The protein blend includes fast-release whey and slow-digesting casein, offering a sustained protein release that supports muscle synthesis over time.

The product is free from artificial sweeteners, flavors, and colors, making it a clean option with only three ingredients: Naked Whey, Naked Casein, and organic maltodextrin from tapioca. It's also non-GMO, gluten-free, and soy-free, catering to individuals with dietary restrictions. Additionally, it includes 11.5g of BCAAs per serving, which are crucial for muscle recovery and growth. Its unflavored nature makes it versatile for mixing into various shakes and recipes without altering taste.

The lack of added digestive enzymes might be a downside for those who experience digestive issues with high-calorie supplements. Additionally, with only 11 servings per 8-pound container, it may not be the most economical option for long-term use. Despite these drawbacks, Naked Mass stands out for its clean ingredient profile and high nutritional value, making it suitable for individuals focused on weight gain and muscle building.

Rating
9.9
Chosen by1,146
Caloric Content
Digestive Enzymes
Flavor and Mixability

Most important from
4587 reviews

Caloric Content
This product is a solid addition to a bulking routine, providing essential calories without the typical 'gut bomb' feeling.
Digestive Enzymes
Naked Mass stands out as by far the cleanest mass gainer, leaving none of the bloated and sluggish feelings common with other brands.
Flavor and Mixability
The taste is genuinely delicious—smooth, not overly sweet, and free from the chalky, artificial aftertaste typical of some protein powders.
#2

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

Rating
9.8
Caloric Content
Digestive Enzymes
Flavor and Mixability

Most important from
4587 reviews

Caloric Content
Perfect for those who struggle with eating solid food, providing necessary calories and nutrients in a light, healthy form.
Digestive Enzymes
The cleanest mass gainer, easy on the stomach and doesn't leave you feeling bloated or sluggish.
Flavor and Mixability
Delicious taste without being overly sweet, and mixes smoothly without any chalky aftertaste.

The NAKED Chocolate Mass Gainer is designed for individuals looking to bulk up and increase their calorie intake efficiently. With a substantial 1,360 calories per serving, it is ideal for those who struggle to consume enough calories through regular meals. The product boasts an impressive 50 grams of protein and 251 grams of carbohydrates per serving, which are essential for muscle growth and recovery. Additionally, it includes 11.6 grams of BCAAs, which support muscle synthesis and reduce fatigue during workouts.

The inclusion of only five natural ingredients—Naked Whey, Naked Casein, Organic Maltodextrin, Organic Coconut Sugar, and Organic Raw Cacao—ensures that the mass gainer is free from artificial sweeteners, flavors, and colors, making it a clean option for health-conscious users. Being gluten-free, soy-free, and GMO-free further adds to its appeal, especially for those with dietary restrictions. The product's versatility in making shakes, smoothies, and various recipes is a bonus for those who like to experiment with their nutrition.

However, some potential drawbacks include the relatively high sugar content (5 grams per serving) and the use of maltodextrin, which may not be ideal for everyone. Additionally, while the flavor and mixability are generally praised, taste preferences can vary. In summary, this mass gainer is a potent option for serious weight gainers who prioritize natural ingredients and high caloric intake.

Rating
9.8
Caloric Content
Digestive Enzymes
Flavor and Mixability

Most important from
4587 reviews

Caloric Content
Perfect for those who struggle with eating solid food, providing necessary calories and nutrients in a light, healthy form.
Digestive Enzymes
The cleanest mass gainer, easy on the stomach and doesn't leave you feeling bloated or sluggish.
Flavor and Mixability
Delicious taste without being overly sweet, and mixes smoothly without any chalky aftertaste.

Buying Guide for the Best Mass Gainers

Choosing the right mass gainer can be a game-changer for anyone looking to increase their muscle mass and overall body weight. Mass gainers are high-calorie supplements designed to help you meet your caloric needs, especially if you have a fast metabolism or struggle to consume enough calories through food alone. When selecting a mass gainer, it's important to consider several key specifications to ensure it aligns with your fitness goals and dietary preferences. Understanding these specs will help you make an informed decision and get the most out of your supplement.
Caloric ContentCaloric content refers to the number of calories per serving in the mass gainer. This is crucial because the primary goal of a mass gainer is to provide a significant calorie boost. If you have a very high metabolism or are looking to gain weight quickly, you might opt for a mass gainer with higher caloric content (600-1200 calories per serving). For those who need a moderate increase in calories, a lower range (300-600 calories per serving) might be more appropriate. Your daily caloric needs and weight gain goals should guide your choice.
Protein ContentProtein content indicates how much protein is in each serving of the mass gainer. Protein is essential for muscle repair and growth, making it a critical component of any mass gainer. Typically, mass gainers contain between 20-50 grams of protein per serving. If your primary goal is to build muscle, look for a mass gainer with higher protein content. However, if you are more focused on overall weight gain and already consume a high-protein diet, a moderate protein content may suffice.
Carbohydrate ContentCarbohydrate content shows the amount of carbs in each serving. Carbohydrates are the body's main source of energy and are vital for replenishing glycogen stores after workouts. Mass gainers usually have a high carbohydrate content (50-250 grams per serving) to provide the necessary energy for intense training and to help increase overall calorie intake. If you are very active or have a high metabolism, a mass gainer with higher carbs will be beneficial. For those who are less active, a moderate carbohydrate content might be more suitable.
Fat ContentFat content refers to the amount of fat in each serving of the mass gainer. Fats are essential for hormone production and overall health, but they are also calorie-dense. Mass gainers typically contain 5-20 grams of fat per serving. If you are looking to increase your calorie intake significantly, a higher fat content can help. However, if you are concerned about gaining fat mass rather than muscle, you might prefer a mass gainer with lower fat content.
Digestive EnzymesDigestive enzymes are added to some mass gainers to help with the digestion and absorption of the nutrients. This is particularly important if you have a sensitive stomach or experience digestive issues with high-calorie supplements. Mass gainers with digestive enzymes can help reduce bloating and improve nutrient uptake. If you have had trouble digesting similar products in the past, look for a mass gainer that includes these enzymes.
Flavor and MixabilityFlavor and mixability are important for ensuring that you enjoy taking your mass gainer and can easily incorporate it into your routine. Mass gainers come in various flavors, and some mix better with liquids than others. If you are picky about taste or plan to mix your mass gainer with different liquids (like water, milk, or smoothies), consider trying a few samples to find a flavor and consistency you like. Enjoying the taste and texture will make it easier to stick to your supplementation plan.

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