Best Weight Gainer For Women: 5 Products Ranked

More often than not, people assume weight gainers are for male bodybuilders looking to get bigger, bulkier, and more muscular. However, many women also require high-quality mass gainer supplements to help them gain weight, build muscle mass, and improve their overall physique. 

It's not uncommon for women—especially those who have a fast metabolism—to struggle to consume enough calories and nutrients necessary to support substantial muscle growth and weight gain. Weight gainers provide a convenient and effective way to achieve a calorie surplus while also boosting protein intake. Ultimately, this can help women build more muscle, improve athletic performance, aid in recovery, and maintain a healthy weight. 

If you're searching for the best weight gainer for women, look no further.

#1. Mass Gainer – Transparent Labs 

In the number one spot, we have Transparent Labs Mass Gainer. Known for the high-quality, scientifically-backed ingredients used in their products, Transparent Labs has created the ultimate solution to help you gain healthy weight more efficiently. 

Formulated and third-party tested with a precise dosage of every ingredient with zero proprietary blends, meaning you get exactly what you see, the Mass Gainer is the ultimate protein supplement for women to effectively gain more weight and build lean muscle mass. 

What’s in It

Available in both chocolate glaze donut and sweet vanilla, each of these flavors contains 3 grams of creatine monohydrate, a blend of organic tapioca maltodextrin, oats, and sweet potatoes (for carbohydrates), as well as 100% grass-fed whey protein concentrate. These formulas are also non-GMO verified and sweetened with stevia and monk fruit. 

In every 2-scoop (196.8 grams) serving of the Chocolate Glazed Donut formula, you’ll get: 

• Calories: 790

• Protein: 53 grams

• Carbs: 114 grams

• Fat: 14 grams

How It Compares

There are many reasons why Transparent Labs Mass Gainer formula ranks as the best weight gainer for women.

A standout feature of Transparent Labs Mass Gainer formula is using such high calories with very little sugar (15 g sugar per 109 g carbs). This is an important factor for weight gainer supplements because excessive sugar consumption is found to contribute to muscle atrophy (also known as muscle loss) and has the potential to hinder our ability to gain muscle mass successfully (1). 

There is also nearly one-third of the required daily intake of calories in fiber, per serving of mass gainer. This is helpful in improving digestion and reducing symptoms of bloating or gastrointestinal discomfort (2). 

Most notably, there are no artificial ingredients included in this mass gainers supplement, such as soy, artificial colors/flavors, or added preservatives. 

#2. Pro Gainer – Optimum Nutrition

Optimum Nutrition Pro Gainer is among the top when it comes to weight gain supplements. Designed to help individuals build muscle and achieve healthy weight gain, the Pro Gainer formula is packed with high-quality ingredients to fuel your next workout. 

What’s in It

Their highly-rated Pro Grainer supplement contains an impressive supply of dairy-based protein (whey and casein) and is available in double chocolate and vanilla custard. 

In every 1-scoop (165 grams) serving of Pro Gainer double chocolate, you’ll get: 

• Calories: 650

• Protein: 60 grams

• Carbs: 81 grams

• Fat: 9 grams

How it Compares

Containing a blend of both fast- and slow-digesting proteins including whey protein isolate, concentrate casein, egg albumen, and hydrolyzed whey peptides, the Pro Gainer supplement is especially helpful in supporting muscle growth and recovery. 

In addition to protein, this mass gainer formula also contains a mixture of complex carbs with only 7 g of sugar, dietary fiber, and an assortment of 20 vitamins and minerals including iron, calcium, potassium, vitamin C, and vitamin E (3).

#3. Vegan Mass Gainer – Naked Nutrition 

Naked Nutrition is a brand known for its commitment to using the simplest and purest ingredients across all its products. 

Striving for optimal health and well-being, Naked Nutrition has formulated an impressive mass gainer supplement free from preservatives, artificial sweeteners, flavors, or colors, delivering you all-natural through and through.

What’s in It

Though the vegan unflavoured supplement is their only kind, they leave more room for more nutritious ingredients to make up for it, such as organic tapioca maltodextrin, coconut sugar, and vanilla for carbohydrates, this delicious blend is bursting with all-natural flavor. 

The plant-based protein blend includes a combination of pea and brown rice protein. 

In each 4-scoop (315 grams) serving of the Mass Vegan Unflavoured formula, you’ll get (3): 

• Calories: 1,230

• Protein: 50 grams

• Carbs: 248 grams

• Fat: 4 grams

How It Compares

Similar to most other protein-rich supplements, Naked Nutrition Mass Gainer is packed with all the right ingredients and calories for gaining weight and building muscle mass.

That being said, this high-calorie blend stands out from the crowd for packing over 200 g of complex carbohydrates to fuel the body during exercise, boost athletic performance, and aid in recovery. 

Another interesting feature is the use of pea and brown rice protein. Pea protein is a complete protein, meaning it contains all nine essential amino acids that the body requires to build muscle. On the other hand, brown rice protein does not contain all essential amino acids but functions similarly to whey protein powder (4, 5). 

Additionally, all Naked Nutrition blends are certified vegan, gluten-free, GMO-free, and soy free.  

#4. Natural Gainer – True Athlete

True Athlete is another brand that supplies female athletes and gym enthusiasts with an impressive weight gainer supplement. Formulated with high-quality ingredients focused on transparency and quality control, their mass gainer is used to support your fitness goals and provide all the nutrients necessary to optimize performance and recovery. 

What's in It

Available in the classic chocolate and vanilla, both flavors contain a blend of fast and slow-metabolizing carbs that are all-natural including pea starch, oat bran, amaranth, quinoa, buckwheat, millet, and chia seed. The protein blend contains whey protein concentrate, milk protein isolate, and micellar casein. Flavors are naturally enhanced with stevia and monk fruit. 

In every 4-scoop (135.5 grams) serving of True Athlete Natural Gainer Chocolate, you’ll get:

• Calories: 510

• Protein: 35 grams

• Carbs: 70 grams

• Fat: 8 grams

How It Compares

This mass gainer supplement is one of the best low-carb options for athletes. With only 70 grams of carbs and 510 calories per serving, it is an excellent option for a less extreme weight gain journey. 

Made with a high-quality blend of whey protein, this protein powder supplement is designed to boost calorie intake, build lean muscle mass, and aid in post-exercise recovery. Rich in complex carbs, healthy fats, and a wide range of vitamins and minerals, this supplement gives you everything you need to support your weight training goals.

#5. Carnivor Mass – MuscleMeds 

Coming in at number five, we have the MuscleMeds Carnivor Mass supplement. Made with beef protein and higher quantities of creatine monohydrate, this product is designed to boost performance and muscle growth in a hurry. 

What’s in It

This high-quality weight gain supplement gives you all the necessary macronutrients in 4 unique flavors including vanilla caramel, chocolate fudge, chocolate peanut butter, and strawberry.

In every 4-scoop (196 grams) serving of MuscleMeds Carnivor Mass chocolate peanut butter, you’ll get: 

• Calories: 710

• Protein 50 grams

• Carbs: 125 grams

• Fat: 2 grams

How It Compares 

The Carnivore Mass supplement is a high-protein weight gainer product designed to boost calorie and nutrient intake to help support muscle growth, repair, and recovery. 

What sets this weight gain supplement apart from the crowd is that it’s made with 100% beef protein isolate. Combined with a healthy range of complex carbs, fats, vitamins, and minerals, Carnivore Mass provides the right balance needed to reach your training goals. 

Not to mention, having 5 grams of creatine offers additional strength benefits to give athletes more power and endurance during higher-intensity workouts (6). 

Gain Weight the Right Way

For most women, gaining muscle mass isn’t as simple as going to the gym and hitting PRs. If you’re looking for a healthy way to build muscle and increase your body weight, mass gainer supplements are the way to go. 

When considering a supplement, it's best to look for one that contains high calories, carbohydrates, protein, and healthy fats. Aside from this, consider the quality of ingredients, taste, and price to find the perfect supplement to help you achieve your weight training goals.