Best Weight Gainers of 2025

"I find this product delicious! I opted for the chocolate flavor and I'm really happy with the taste. I deal with anxiety, which sometimes affects my appetite, leading to weight loss. This product is a great meal replacement for me, packed with high calories and protein. I've got about 10+ lbs to gain back, and I’ll definitely be purchasing more."

"I've been using this for breakfast or lunch and I love it. It tastes great, and I sometimes mix in ice cream for extra flavor and calories. However, I was surprised to learn that a serving size is actually 2.5 cups, which is quite a bit for me."

"This stuff has been a lifesaver for me. After battling cancer and losing nearly 70 pounds, it’s the only thing that has helped me gain weight back. It’s difficult to consume enough calories from regular food, but this product allows me to do that without much effort. I’ve gained over 10 pounds in just 15 days, and I feel my strength returning. Definitely, 5 stars from me!"

"I really enjoy this protein mix. It tastes just like vanilla ice cream and works well when combined with exercise."

"This protein is fantastic! It's high quality and delicious, helping me reach my fitness goals."

"My son loves this product for weight gain. He says it tastes good and mixes it with fruit for smoothies."

"I'm almost at my ideal weight of 170. For the last 10 years, I've struggled to gain weight since high school. This has really helped! I enjoy an active lifestyle, and it's crazy how many products are out there for weight loss but not for gaining. The chocolate flavor is fine, but for the serving size, I split it into two drinks—chugging the first and sipping the second."

"I have to be honest, the taste is horrid. But I plan on turning it into a fruit smoothie to see if that works out."

"After using MuscleTech Mass Gainer for a few weeks, I've noticed a significant increase in muscle mass. It's easy to mix and tastes great! This product provides the extra calories and protein I need to hit my fitness goals. I highly recommend it for anyone looking to build muscle and gain weight."

"My elderly mom started using Serious Mass a few months back to gain back weight she lost due to medical issues. She loves the taste but was surprised by how huge the container is. It’s easy to open and comes with a big scoop. Right now, she uses it to maintain her weight and supplement her diet. I mix it with chocolate and vanilla drinks and almond vanilla soy milk. It blends nicely, and she enjoys it!"

"I tried both vanilla and chocolate flavors, and I recommend only getting the chocolate flavor. The chocolate is similar to other brands, but the vanilla had a taste I didn’t enjoy. I use an electric blender for a smooth shake and sometimes add peanut butter to enhance the flavor. I’ve gained 15 pounds in three months, mostly muscle, but I recommend using it with a workout plan for best results!"

"I've been using this for a while now, and I can say that consistency is key. This powder has been powerful for my goals, and I recommend it to anyone who is serious about gaining weight. It truly delivers on its promises!"

"I’ve gained about 10 pounds since starting this product. I mix 1 scoop with milk every other day and drink it during my workouts. It tastes like strawberry milk, and I appreciate that it helps me pack in extra nutrition without just going to my gut."

"This protein shake gives me incredible energy every morning. It melts easily, is soft and delicious, and provides fast results. I love how well it mixes without forming lumps."

"As a college student, I need convenience in my diet. I’ve found Serious Mass very effective for gaining healthy weight while fitting into my busy schedule. Using just one scoop instead of two works better for me; it’s easier to blend and still packs a punch with 625 calories."

"I recently tried the GNC Pro Performance Weight Gainer in Strawberries and Cream flavor and I am thrilled with the results. This product has exceeded my expectations. The delicious flavor is creamy and smooth, making it feel like I'm enjoying a milkshake every day. It's a genuinely enjoyable taste experience without any chalky aftertaste. Within a few weeks, I noticed a significant increase in my weight and muscle mass, and I felt stronger and more energetic. The high-quality ingredients and perfect balance of macronutrients truly make this product a game-changer. I highly recommend it!"

"After my husband got ill and lost a lot of weight, I needed to add more protein to his diet. He enjoys the flavor and now has more variety in his meals. The quality, mixing, size, and texture are all good. I plan to update on its effectiveness in about a month, as we'll be consuming it twice daily along with meals."

"I like the flavor of this product; it tastes like vanilla. It fills me up, although I find it a bit hard to shake in a shaker bottle, so I must use a blender instead."

"I finally found a protein powder that doesn't taste like chalk! This stuff is so good that I keep forgetting it's actually healthy – it tastes like dessert in a cup. It mixes easily, and I feel like a fitness influencer without the usual struggle. One tub lasts forever, so even though it's a bit pricier, it's worth every penny!"

"I purchased this shake for my son, and I was unsure if he would like it. However, it definitely hit all the right marks! He loves having it before and after workouts, often adding a banana and spinach. This huge bag is an excellent value at 50 bucks, and even his friends say it tastes rich and delicious. I will definitely be buying more!"

"This has to be the tastiest gainer on the market. No bloating, well-priced, and it mixes easily in a shaker. I also add Evogen creatine for extra benefits. It arrived in just 6 days from the US. I'm really impressed and will certainly purchase it again!"

"I can't say enough good things about this mass gainer. I finally decided to switch to Naked Mass after months of contemplation, mainly because I wanted something natural. The unflavored version has a very slight vanilla flavor, just a hint of sweetness, and I love mixing it with almond milk. It feels healthy and light, and I actually look forward to drinking it!"

"I've been using the Naked Mass Gainer for three weeks now, and I'm really impressed with the results. It blends smoothly with almond milk, and I've noticed significant muscle gains already. Just a heads up, check the scooper size because mine was smaller than expected, but overall, I highly recommend this clean mass gainer!"

"I've struggled with my weight for years, but since starting this weight gainer, I've seen great improvements. I mix it with about 20oz of almond milk and enjoy the chocolate flavor. I've gained 8 pounds in just two weeks, and my strength has increased significantly. This product is a game changer for me!"

"I switched from True Nutrition protein to this and saw a marked difference in muscle gain after finishing one bag. The taste is great and it mixes better than my previous protein, which would turn frothy. Initially, I was put off by the asinine marketing, but the results convinced me to try it."

"I love making my own protein ice cream with this powder. I blend cold condensed coconut milk and add protein scoops little by little. The result is a delicious, dairy-free, low-sugar protein ice cream that I can't get enough of!"

"I’ve been using this for a year, and my husband loves the strawberry and banana flavor. He mixes it in various ways, but his favorite is with almond milk, real strawberries, bananas, and ice. It dissolves well and is high in protein, which he appreciates!"

"I've been using this product once a day for a month and gained 20lbs! I'm planning to stay consistent and will definitely purchase again!"

"While I found this product to be very effective, I did notice my cholesterol levels were high despite being active. I had to switch to plant-based options for health reasons."

"I had a terrible experience with the delivery; the bag was ripped and the taste was awful, like medicine. I wouldn't recommend it at all and prefer using MUTANT MASS PROTEIN instead!"