10 Best Weight Gain Supplements For Skinny Girl in 2026

With 1,250 calories and 50 grams of protein in a single serving, this gainer delivers the substantial nutritional surplus a hard-gaining individual needs without relying on artificial fillers. It suits someone prioritizing ingredient transparency and a clean, NSF-certified formula, using a blend of whey and casein to provide amino acids over a longer period. The organic tapioca maltodextrin offers a complex carbohydrate source that avoids common allergens, making it a straightforward tool for packing on mass when combined with consistent training.

The trade-off is its sheer volume and simplicity. The 8-pound tub is a commitment, and the unflavored powder means you’ll be blending it into your own recipes. For a skinny girl who struggles to consume enough calories, this density is the point. If you prefer a pre-flavored, more convenient shake, something like the Optimum Nutrition Gold Standard Pro Gainer might be less work to prepare daily. This product is for the tinkerer who wants total control over what goes into their body.

Each serving delivers 650 calories and 60 grams of protein, providing a substantial nutritional foundation for weight gain. This formula offers a significant calorie and protein boost without the extreme levels found in some other gainers, and it contains less than 8 grams of sugar per serving. The result is a product that supports mass gain while emphasizing protein content and limiting added sugars.

While it provides a high-calorie serving, it is not the most concentrated option available. For comparison, products like NAKED Mass offer 1,250 calories per serving. This positions the Optimum Nutrition Pro Gainer as a choice for those seeking a strong calorie increase that still prioritizes a high-protein blend.

The 1,280 calories per serving is the defining feature, a massive caloric injection designed for someone struggling to eat enough through meals alone. It suits a skinny individual with a fast metabolism who needs a simple, efficient tool to create a significant daily surplus. The combination of whey and casein provides a sustained protein release, which is useful for muscle support throughout the day, not just post-workout. This is for the person whose primary barrier to gaining is simply not consuming enough total energy.

With 1,280 calories per serving, Dymatize Super Mass Gainer is designed for a substantial caloric boost, targeting individuals with high energy needs for muscle mass gain. Its 245 grams of carbohydrates per serving contribute significantly to that total. The container is noted as having eight servings, which means the entire package is intended for a specific, intensive usage period rather than prolonged, gradual supplementation.

Designed for balanced nutrition and healthy weight support, this drink mix blends carbohydrates, protein, vitamins, and minerals without extreme bulking formulas. The 20.3-ounce package is a more compact option than many multi-pound jugs, making it suitable for those who need a manageable supplement that fits easily on a kitchen shelf. Its gentle approach is intended for individuals with fast metabolisms or busy schedules who find meeting daily calorie needs through food alone challenging.

This product’s compact size is evident when compared to others like the ten-pound Optimum Nutrition Gold Standard Pro Gainer. The smaller container is easier to store and handle, ideal for someone integrating it into a daily routine without committing to a massive supply. It comes from Naturade, a brand with nearly a century of nutrition expertise, emphasizing a thoughtful, nourishing approach to weight support rather than aggressive mass building.

A single serving delivers 1,500 calories and 60 grams of protein, which is a substantial caloric push for someone who finds it hard to eat enough in a day. It’s a straightforward choice for a skinny individual whose primary barrier is simply consuming sufficient calories. The inclusion of pure, tested creatine monohydrate is a notable feature, as it supports strength and performance during the heavy training required to turn those extra calories into muscle, rather than just body fat.

Each serving mixed with skim milk delivers 60 grams of protein and 1,500 calories, providing a substantial nutritional foundation for muscle recovery and weight gain. This high-calorie shake is designed for intense training phases where meeting daily caloric needs is a primary challenge. While effective, the preparation requires commitment, as it must be blended with milk to achieve its full nutrient profile.

Over 1,200 calories in a two-scoop serving makes this a serious tool for someone whose primary goal is adding size. When food alone isn’t enough to create the necessary calorie surplus, this mass gainer delivers a dense blend of protein, carbs, and micronutrients. It suits individuals in dedicated bulking phases who need to significantly increase their daily energy intake to support weight gain and intense training. The included vitamins and minerals, like Vitamin C and Zinc, offer a layer of nutritional support often missing from a high-calorie diet focused purely on macros.

Each serving delivers over 250 grams of carbohydrates, a significant load intended to replenish glycogen and fuel sustained energy. This high-carb content supports bulking phases where diet alone falls short, but the sheer volume may not suit all digestive tolerances. Compared to options like the Rival Nutrition Clean Gainer with 550 calories, Optimum Nutrition Serious Mass Gainer occupies the far end of the calorie-density spectrum. It represents a substantial dietary commitment rather than a minor addition.

Each serving provides 390 calories when mixed with water, offering a controlled foundation for lean mass gain without relying on milk. This suits individuals with fast metabolisms who struggle to eat enough, as the 2:1 ratio of clean carbs to protein and MCT fats is designed to fuel workouts and support steady weight gain. Beverly International uses research-based ingredients and has delivered supplements since 1967.

The 3-pound container supplies 14 servings. Compared to a product like NAKED Mass, which delivers over 1,200 calories per serving, Beverly International Mass Maker Ultra provides a lower calorie total.

With 550 calories and 30 grams of protein per serving, this gainer provides a substantial but measured boost for lean muscle growth. Its formula focuses on clean ingredients, using natural flavors and stevia, while being gluten-free and free of added sugars, artificial colors, or fillers. This suits a buyer who prioritizes what’s not in the powder as much as the quality calories and protein that are included.

The trade-off is in the calorie count. While the clean profile is a clear strength, 550 calories per serving is a moderate dose. For someone who finds it hard to eat enough to gain weight, this might mean needing multiple servings or additional meals to hit a significant surplus. Compared to a product like NAKED Mass, which packs over twice the calories, Rival’s Clean Gainer is a precision tool, not a blunt instrument. It’s better for controlled, gradual gains than for rapid, maximum bulk.

A 100% beef protein isolate base makes this a stark alternative to the dairy-heavy field. For a skinny individual with lactose intolerance or a dairy sensitivity, that specific formulation directly addresses a major barrier to consistent calorie and protein intake. It sidesteps the bloating and discomfort that can derail a weight gain regimen, which is precisely why it stands out for that particular need.

The product comes in a notably bulky container, measuring 8 by 8 by 11 inches, so it requires significant storage space. Compared to other weight gainers like NAKED Mass or Optimum Nutrition Pro Gainer, its six-pound weight suggests a smaller total volume.

VH Nutrition’s Eatmor supplement uses a blend of gentian root, ginger, and alfalfa to naturally stimulate appetite, according to the brand. This approach aims to increase hunger cravings, potentially helping users consume more food and calories over time. Unlike calorie-dense powders, these capsules work indirectly by encouraging more frequent eating.

Contrasting with products like NAKED Mass that deliver over 1,200 calories per serving, these capsules contain no protein or significant calories themselves. The brand states the supplement may support healthy weight gain by increasing hunger for more calories. Results depend entirely on the user’s subsequent food intake, as the product itself provides herbal ingredients rather than nutritional content.