Best Weight Gainers of 2026

"I've consistently used this mass gainer for bulking and it absolutely delivers. With 1,280 calories and 52g of protein per serving, it's ideal for hitting my calorie goals. The Gourmet Vanilla flavor is super smooth and not chalky like others I've tried. This is my foundation for building muscle and gaining weight—highly recommend it!"

"Every time I use this, I notice significant improvements in my energy, recovery, and muscle mass. The powder mixes easily and tastes great, whether with water or milk. It's helped me reach my daily calorie and protein goals, and I’m very happy with the results."

"I started using this to bulk up and in just a few weeks, I've gained noticeable weight and muscle. Once I got the liquid-to-powder ratio right, there was no clumping, and the flavor was pretty good. Each serving is quite filling, so I split it into two shakes a day. It's definitely effective for anyone looking to add size."

"I've found MuscleTech 100% Mass Gainer really helpful for building muscle and boosting my daily calorie intake. The Chocolate Fudge Brownie flavor is enjoyable—not too sweet and easy to drink, especially in shakes. It dissolves much better than other gainers I’ve used, and I appreciate that it already has creatine in the formula. If you’re training regularly and need extra nutritional support, this is a solid choice."

"As someone who often struggles to eat enough calories, this gainer has been a lifesaver for me in helping to put on weight. It’s one of the few options that is recommended for not containing unwanted heavy metals, which gives me peace of mind. The only catch is, you really need a blender for best results, since it can get clumpy otherwise. Still, I’m happy with the results and would recommend it to anyone looking to gain mass safely."

"I’m a senior lady who’s still active with weightlifting, yoga, and biking, and I started using this product to regain some lost weight and boost my protein intake. It tastes great and is making a real difference in my energy and recovery. The extra calories and protein are exactly what I needed!"

"I've always struggled to put on weight, but with Serious Mass, it’s finally manageable. The calorie and protein content is impressive, and the chocolate flavor is actually enjoyable, especially with milk or a banana. I started slow with half a serving since the full amount is massive, but I’m seeing real progress. It’s made bulking up so much easier for me."

"After losing a lot of weight recently, I tried Serious Mass and was amazed. Just one scoop a day helped me gain back 9 pounds in a week. I love that it’s convenient—just blend with milk and water, and the strawberry flavor is really tasty. This shake has really made a difference in my weight gain journey."

"I’m what you’d call a hardgainer, and I’ve used lots of different supplements. Serious Mass stands out because it tastes good, blends easily, and is loaded with calories and protein types. The bag is big but the scoop size is huge, so I just use half and add extras like peanut butter. Definitely the best-tasting gainer I’ve tried."

"I've tried several weight gainers, but for me, Serious Mass stands out for its rich chocolate flavor and impressive calorie boost. I appreciate that it blends smoothly in a blender, and the large bag lasts quite a while. If you have a fast metabolism or trouble eating enough, this is a reliable choice."

"As someone with a very quick metabolism who struggles to put on weight, this product has helped me gain 15 lbs in just three months. I love that you can adjust serving sizes to meet your goals, and splitting it into half servings makes it much easier to drink. The taste is fantastic with milk, just be aware it can cause some gas."

"I've used Optimum Nutrition products for years, and their quality and taste are better than any others I've tried. Serious Mass dissolves easily in both water and milk, and it's been a great addition to my workout routine."

"I've been using this product to help me gain weight and build muscle, and it’s been fantastic. What stands out to me is the high calorie and protein content, which really makes a difference in my workouts and recovery. I love how easily it mixes into shakes and how I never feel bloated. If you’re serious about bulking up, this is a go-to!"

"For anyone like me who struggles to keep weight on, especially during an active summer, Serious Mass is a lifesaver. It mixes well, keeps my energy levels high, and the taste is great—especially when I blend it with fruit or peanut butter. I’ve noticed real improvement in my strength and muscle mass since starting."

"I picked up Serious Mass for my father, and we’ve both been impressed with the quality and results. The powder dissolves easily and is packed with essential vitamins and protein. Although it’s a bit pricey, the value and effectiveness absolutely justify the cost."

"I've noticed great results in strength and size since I started using this product. It's been working well for me, and I can definitely feel the difference in my workouts."

"Pairing Anabol Hardcore with Anabol Ripped has been a game-changer for me. I experienced a huge boost in energy, significant lean muscle gains, and much better recovery. The natural ingredients give me peace of mind, and my confidence and motivation have soared. I highly recommend this combo to anyone serious about their fitness goals."

"I've used this for 10 days and, tracking my workouts closely, I saw no measurable change in performance. For me, the product didn't deliver noticeable results, and I think some of the hype may be due to placebo effects rather than actual improvements."

"I've been using this product for years, and I can confidently say the quality is consistently excellent. It provides a solid amount of protein and calories that help me build lean muscle, and it's easy to digest. Even though the price is on the higher side, I believe it's well worth the investment for reliable results."

"Optimum Nutrition Serious Mass Weight Gainer has played a key role in my weight gain and muscle-building journey. Thanks to its high protein and calorie content, I've seen clear progress in muscle mass. While I appreciate the effectiveness and flavor variety, I do wish the ingredient list was more transparent. Still, for the price and results, it's a great option for bulking up."

"This is the go-to weight gainer for anyone struggling to put on pounds. After trying all the flavors, I found that banana mixed with milk tastes just like a milkshake and chocolate is a close second. I've managed to gain 15 pounds in two months by taking it daily. If you want real results, consistency with this product delivers."

"I've used many mass gainers, but Naked Whey stands out for its clean ingredients and how light it feels on my stomach. I can enjoy it post-workout or between meals without any bloat or sluggishness, which is huge for me. The vanilla flavor is actually delicious—smooth, not too sweet, and no chalky aftertaste. It's become a staple in my bulking routine, delivering the calories I need without the gut bomb. The only downside is the price and how quickly I go through a tub. Still, for the quality, it's worth it."

"As a hard gainer lifting 4-5 days a week, I needed more calories but didn't want a super thick shake. This helped me gain 15lbs of muscle. The taste is top tier and the texture is excellent when blended. I love how digestible and easy to use it is. I even suggest sipping it slowly for the best results. I'm already on my seventh tub—it's that good!"

"I started using this after losing weight while caring for my baby. With so little time to cook, I needed something quick and nutritious. The unflavored version is perfect with only three ingredients, and even though it's a bit pricier, the clean formula is worth it. After two weeks, I've gained 8.6 lbs and feel more energetic every day. Mixing it with fruits and milk makes it delicious, especially with mango. This product has really helped me get back on track."

"This maltodextrin has become a staple in my cycling nutrition. It dissolves instantly, has no clumps, and provides steady, easily digestible energy for my long rides and intense Zwift sessions. I combine it 1:1 with fructose and never have stomach issues or cramps—just reliable fuel. The 5-pound tub lasts for months and saves money compared to other options, though I do wish it came with a scoop. Overall, it's a no-fuss, high-value foundation for DIY ride fuel."

"I started adding this powder to my protein smoothies and workout drinks, and it's been a game changer. It's tasteless with a slight sweetness, blends seamlessly, and adds extra carbs and calories without affecting the flavor. I've even noticed some weight gain while bulking, and it's so easy to mix into anything. Highly recommend for anyone looking to boost calorie intake."

"Since incorporating this into my pre- and intra-workout routine, I can power through longer workouts with energy to spare. It mixes well, doesn't alter the taste of my drinks, and helps me get more quality sets in the gym. I use half the recommended serving and it still makes a huge difference. Perfect for anyone training hard for over an hour."

"I've finally found a mass gainer that actually tastes good—the vanilla milkshake flavor is delicious and easy to drink. I use it daily, sometimes twice, depending on my calorie needs, and I've noticed a solid gain of 4-5 pounds of lean muscle in just weeks. It mixes smoothly with no clumps, and I don't feel bloated or sluggish after drinking. If you're focused on putting on muscle without too much fat, this is the product I recommend!"

"As someone who really struggles to gain weight, Mass Tech Extreme 2000 has been a game-changer for my bulk. One full serving is packed with over 2,100 calories, 60g of protein, and 5g of creatine. I always mix it with whole milk after training, sometimes tossing in a banana or peanut butter for extra calories. The vanilla flavor is smooth, not too sweet, and the 6lb bag is a great value. If you're having trouble adding size, this is a solid addition to your routine—just remember to train hard and eat consistently."

"I picked this mass gainer mainly because the Cookies and Creme flavor is amazing—if you can find it! I like that creatine is already included and it mixes really well. It's a bit sweet, but overall, the taste is what made me choose this over other brands."