10 Best Weight Gain Supplements 2026 in the United States

Vanilla Naked Mass is a weight-gain supplement that stands out due to its simplicity and high nutritional value. With only three ingredients—Naked Whey, Naked Casein, and organic tapioca maltodextrin—it offers a clean, all-natural option for those looking to bulk up. Each serving delivers a substantial 1,250 calories, making it ideal for individuals who need to significantly boost their caloric intake. The 50 grams of protein and 252 grams of carbohydrates per serving provide a balanced macronutrient profile essential for muscle growth and recovery.

The inclusion of 11.5 grams of BCAAs supports muscle synthesis and repair. The product is free from GMOs, gluten, soy, and artificial additives, appealing to health-conscious users with dietary restrictions. The combination of fast-digesting whey and slow-digesting casein proteins ensures prolonged protein absorption, beneficial for sustained muscle building. With only 5 grams of sugar per serving, it may not be the best option for those seeking a sweeter taste. While the vanilla flavor is generally pleasant, some users may find it bland compared to more commercially flavored options.

Mixability is decent but may require a good shaker or blender to achieve a smooth consistency. The versatile powder can be added to various recipes, enhancing its usability beyond just shakes. If your goal is to gain weight with a natural, high-calorie supplement, Vanilla Naked Mass is a strong contender, especially if you have specific dietary needs or prefer minimal ingredient products.

Dymatize Super Mass Gainer Protein Powder is designed for individuals looking to quickly gain weight and muscle mass. Each serving packs a hefty 1280 calories and 245 grams of carbohydrates, making it easier for hard gainers to increase their calorie intake. The product also offers 52 grams of protein, which consists of both fast and slow-digesting proteins to keep muscles fueled throughout the day.

Additionally, it contains 10.7 grams of BCAAs, including 5.1 grams of Leucine, to support muscle protein synthesis and recovery. The inclusion of 14 vitamins and minerals helps aid muscle recovery, making it a well-rounded supplement for weight gain and muscle building. The powder is gluten-free and comes in a 6-pound pack with a vanilla flavor.

The product has only 8 servings per container, which might require frequent repurchases for those using it regularly. Also, the high-calorie content might not be suitable for those who gain weight easily. Dymatize Super Mass Gainer is a solid choice for those struggling to gain weight and muscle, thanks to its high caloric and protein content, as well as its digestibility and flavor.

The Optimum Nutrition GS Pro Gainer Weight Gainer Protein Powder in Double Chocolate flavor is designed to help individuals gain weight and muscle mass effectively. A major strength of this supplement is its high caloric content, delivering 650 calories per serving, making it ideal for those who need to consume extra calories to support weight gain. Additionally, it provides a substantial 60 grams of protein per serving, which is excellent for muscle growth and recovery, and 85 grams of carbohydrates to help restore energy levels post-workout or between meals.

The inclusion of 32 vitamins and minerals, specifically Vitamin C and Zinc, supports immune function, catering to the higher nutrient demands of active individuals. Another strong point is its low sugar content (7 grams or less), making it a healthier option compared to some other weight gain powders on the market. The fact that it mixes effortlessly with a blender, shaker, or spoon adds to its convenience.

However, there are a few potential drawbacks. The product's taste, while generally liked by many, could be too sweet or too rich for some users, especially if consumed regularly. Additionally, at 5.09 pounds, the product's packaging might be considered bulky, which could be a storage concern for some. Despite these minor limitations, this weight-gainer protein powder can be a great addition to the diet of those looking to gain weight and muscle mass in a balanced and nutritious way.