10 Best Mass Gainers 2025 in the United States

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.

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.

Naked Vegan Mass is a plant-based weight gainer designed for those looking to add calories and protein cleanly, without artificial additives. Each serving provides 1,230 calories, making it excellent for people who struggle to consume enough energy to gain weight. With 40g of protein sourced from a blend of pea and rice proteins, it offers a complete amino acid profile that supports muscle growth effectively. The carbohydrate content is high at 245g per serving, using gluten-free tapioca maltodextrin as a clean source of complex carbs, which is a better choice than wheat-based carbs for those avoiding gluten.

Fat content is low, coming mainly from organic coconut sugar, which keeps the formula simple and focused on gaining lean mass. The product does not include digestive enzymes, which might affect digestion for some users when consuming such a dense shake. The vanilla flavor is mild and easy to mix, allowing you to customize shakes with fruits or other ingredients to suit your taste. While it is free from soy, gluten, dairy, and GMOs, the flavor options are limited to vanilla only.

This product is ideal for vegans and vegetarians who want a clean, high-calorie supplement without artificial ingredients and works best when combined with a solid weightlifting routine for muscle gain.