Best Natural Weight Gainers of 2025

Naked Mass is a GMO-free, gluten-free, and soy-free weight gainer protein powder that contains only three ingredients: Naked Whey, Naked Casein, and organic maltodextrin. With 50g of protein, 252g of carbs, 1,250 calories, and 11.5g of BCAAs per serving, this product is designed to maximize nutrition and promote healthy weight gain. Its multi-phase clean protein combines fast release grass-fed whey with slow-digesting micellar casein, while its premium complex carbohydrates use gluten-free organic tapioca maltodextrin for a clean source of carbs. Naked Mass is versatile for making smoothies and recipes, and is perfect for homemade protein bars and shakes.

MRM Gainer is a weight gainer supplement that provides 25 grams of complete protein per serving. This high protein content is essential for increasing lean muscle mass and maintaining a healthy weight. The protein sources in MRM Gainer also contain essential amino acids, including Branched Chain Amino Acids (BCAAs), which are known to support lean muscle growth. Additionally, this product includes 5 strains of probiotics that can improve the biochemistry of the digestive tract, leading to better immune and digestive health. With MRM Gainer, you can conveniently enhance your body's protein intake, support muscle growth, and improve overall health.

Build muscle size and strength with Mutant Mass Weight Gainer Protein Powder. This enhanced gainer supplement is packed with BCAAs/EAAs and waxy maize to help with growth and bulking. With 1100 calories per serving plus 56 g of quality protein from whey isolate, concentrate and casein blend, it has 192 g of clean carbs with 12 g of fat plus naturally present 26.1 g of EAAs and 12.2 g of BCAAs. Made from natural whole-foods, it includes barley, sweet potato, rolled oats, avocado, coconut oil, flaxseed, pumpkin seed, and sunflower oil. Engineered in a state-of-the-art manufacturing facility to maintain gold-standard quality, it comes with a great gourmet taste.

Introducing The Genius Brand Muscle Builder, a powerful supplement designed to optimize muscle growth and performance in men and women. With a 100% transparent formula, this supplement is made in the USA and is naturally flavored and sweetened with no banned substances. It features Peak O2, an organic blend of 6 Ayurvedic mushrooms, which has been shown to improve workout duration, strength, and endurance. Additionally, the Mediator Phosphatidic Acid in this supplement provides double the muscle mass gain, increased strength, and fat mass loss. The premium ingredient MyoeDge combines HMB with Vitamin D to promote muscle health, improve lean muscle mass, and optimize bone quality. With 30 scoops per container, The Genius Brand Muscle Builder is the perfect choice for anyone looking to enhance their muscular health and achieve their fitness goals.

GNC Weight Gainer is formulated to help you reach your athletic goals with its delicious blend of protein, BCAAs, carbohydrates, and MCTs. This weight gainer offers 50 grams of protein per serving, ensuring your muscles have the essential amino acids they need, whether before or after your workouts. With 700 calories per serving, it provides ample energy to fuel your day and replenish your reserves. Additionally, the inclusion of MCTs allows for quick energy absorption, while BCAAs work to minimize muscle breakdown during exercise, supporting your overall performance and recovery.

Animal Meal is a high calorie meal shake made with all natural ingredients. Its protein blend includes pea protein isolate, instant egg white, dried whole egg protein, and beef protein isolate, while the carb blend consists of sweet potato powder, pea starch, tapioca dextrose, and rolled oats. The product is flavored with sea salt, stevia, vanilla, and monk fruit extract. Animal Meal is easy to drink and digest, and is manufactured in the U.S.A. in a cGMP facility.

bixa BOTANICAL Kudzu Powder is a natural herbal supplement designed to support your overall well-being. It aids in rejuvenating your body and enhancing your libido, which can lead to improved vitality. For new mothers, this supplement promotes healthy milk production, ensuring that you can nourish your baby effectively. Additionally, it plays a role in supporting proper urine formation, contributing to your urinary health. With its lab-tested quality, this product is vegan, gluten-free, and non-GMO, making it a safe choice for your dietary needs.

Dr. Nutra Weight Gainer is designed specifically for women looking to gain weight and enhance muscle mass. It features three high-quality proteins sourced from natural ingredients, ensuring optimal protein intake for muscle growth. This product also provides essential calcium to support bone health, along with iron and folic acid for proper blood formation and immune function. Its vegetarian formula boosts appetite without side effects, making it convenient for those who want to increase their caloric intake naturally. With the added benefits of 25 vital vitamins and minerals, you can achieve complete nutrition for your weight gain journey.

Forzagen Lean Gainer is a high-quality mass builder designed to support muscle growth and repair. With a customizable serving size, you can adjust your calorie intake based on your specific goals and dietary requirements. This makes it convenient and efficient for anyone, especially those with a busy lifestyle or difficulty consuming enough calories through regular meals alone. The carefully selected blend of proteins, carbohydrates, and healthy fats in Forzagen Lean Gainer provides the essential nutrients needed to fuel muscle growth and promote an anabolic environment within the body. Additionally, its perfect macronutrient profile optimizes muscle recovery, enhances energy levels, and improves overall athletic performance. With Forzagen Lean Gainer, you can meet your increased caloric needs, prevent undernourishment during intense training, and achieve your muscle gain goals.

Gorilla Gulps Mass Gainer is a high-calorie protein powder that provides a complete amino acid profile, making it an excellent source of Vitamin B12, Vitamin D, and Iron. With no artificial sweeteners, colors, or flavors, this weight gainer is free from added sugar, GMOs, gluten, dairy, and soy. It features a gut-friendly formula that includes healthy fats from virgin olive oil and carbs from tapioca and organic banana powder, ensuring no bloating. Tested for heavy metals, microbes, and allergens, this clean weight gainer is made in a 100% solar-powered facility in the USA. In addition, Gorilla Gulps donates annually to the Dian Fossey Gorilla Fund. With Gorilla Gulps Mass Gainer, you can enjoy the convenience of a high-protein, high-calorie supplement that supports your nutritional needs and promotes a healthy lifestyle.