10 Best Weight Gain Supplements 2026 in the United States

NAKED Mass is a weight gainer designed to help those who struggle to gain weight by providing a hefty 1,250 calories and 50 grams of protein per serving. It uses only three clean ingredients—grass-fed whey, casein, and organic maltodextrin from tapioca—making it free from artificial additives, gluten, soy, and GMOs. This simple ingredient list appeals to users looking for a natural option without unnecessary fillers. The protein blend combines fast- and slow-digesting types, which can support muscle repair and growth over time.

Carbohydrates are delivered via a gluten-free maltodextrin, offering a complex source of energy to fuel weight gain without spiking sugar too much (only 5 grams per serving). The product doesn’t list added vitamins or minerals, so users might want to complement it with other nutritious foods or supplements to cover those bases. Being unflavored makes it versatile for mixes and recipes, but some might find it bland and require additional flavoring.

The large serving size and high calorie count make it suitable for serious 'hard gainers' but could be overwhelming or too much for casual users. Digestibility should be good due to the clean ingredients and absence of common allergens, though some people might find the quantity per serving heavy on the stomach. NAKED Mass represents a straightforward, high-calorie, protein-rich supplement without artificial extras, best suited for those committed to a high-calorie diet and consistent training.

The NAKED Chocolate Mass Gainer is a straightforward, natural option for those looking to gain weight with clean ingredients. Each serving delivers a hefty 1,360 calories, making it suitable for people who struggle to consume enough calories. It packs 50 grams of protein from quality sources—whey and casein—which helps support muscle growth throughout the day. Carbohydrates come primarily from organic tapioca maltodextrin, offering a gluten-free complex carb that fuels energy without relying on wheat-based ingredients.

Fat content is low, with no added unhealthy fats, promoting a leaner calorie boost. The product is free from soy, gluten, GMOs, and artificial additives, appealing to those sensitive to common allergens or looking for cleaner nutrition. Digestibility should be good since it avoids common irritants and uses familiar protein types. Flavor-wise, it offers a natural chocolate taste and mixes well for shakes or recipes, though some may find the simplicity less sweet compared to other mass gainers with heavier flavoring.

One downside is that it lacks added vitamins and minerals, so users might need to ensure they get these nutrients from other sources. Also, while it has only 5 grams of sugar, the overall carb load is very high, which might not suit everyone’s digestive comfort or dietary preferences. This weight gainer suits individuals who want a high-calorie, clean-label product without extra artificial ingredients and prefer a straightforward supplement to support serious bulking efforts.

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.