SUPPLEMENTS CAN BE a great compliment to work that you are putting in and out of the gym. But no matter how you slice it, a supplement habit is pricey. And, if you’re tossing back more than one supplement on a daily basis, like we are, it can really add up. That’s why it’s vital to grab these products at a discounted price when you can.

To be fair, supplement sales are never going to be as dramatic as the markdowns you’ll see on home gym equipment or running shoes. But even saving a few bucks on your go-to supplements or products you’ve been curious about will save you plenty in the long run, especially if you consistently use them.

As always, supplements shouldn’t replace a well-balanced diet. If you’re adding a new product to the mix, it’s also a good idea to check in with your doctor if you have questions. Below are our top on-sale picks from editor guides. Just don’t confuse “discounted” with “cheap”: Each of these picks is third-party tested to make sure what’s in the bottle matches the ingredients list. We’ll keep updating the list as new deals roll in to ensure you can take advantage of the latest markdowns.

August 2025 Amazon Supplement Deals

Best Accessible Protein Powder

On SaleOrganic Vegan Protein PowderOrgain Organic Vegan Protein Powder

Now 23% Off

Credit: Amazon

Best Protein Powder With BCAAs

On SaleWhey ProteinSports Research Whey Protein

Now 10% Off

Best Budget B12

On SaleVitamin B12 Nature Made Vitamin B12

Now 58% Off

Credit: Amazon

Best Creatine

On SaleCreatine Monohydrate Sports Research Creatine Monohydrate

Now 23% Off

Credit: Amazon

Best Multivitamin Bundle

On SaleSynbiotic+ and Men's 18+ MultivitaminRitual Synbiotic+ and Men’s 18+ Multivitamin

Now 15% Off

Credit: Amazon

Best for Gut Health

On SaleSynbiotic+ Ritual Synbiotic+ Credit: Amazon

Best Meal Replacement

On SalePro Advanced Nutrition Protein ShakeMuscle Milk Pro Advanced Nutrition Protein Shake

Now 20% Off

Credit: Amazon

Best Protein Powder

On SaleGold Standard 100% WheyOptimum Nutrition Gold Standard 100% WheyCredit: Amazon

Best Electrolyte Packets

On SaleElectrolyte Powder PacketsDripDrop Electrolyte Powder Packets

Now 26% Off

Credit: Amazon

Best Magnesium Softgel

On SaleMagnesium Glycinate Nature Made Magnesium Glycinate

Now 12% Off

Credit: Amazon

Best Magnesium+ Supplement

On SaleMagnesium Citrate Garden of Life Magnesium Citrate

Now 27% Off

Credit: Amazon Why These Are Our Picks

Protein powders dominate the on-sale supplement field this month. That includes Optimum Nutrition Gold Standard 100% Whey, a high-quality powder that tastes great and is a value at baseline. It’s designated as the best value protein powder in our guide, and regularly shows up on our supplement lists.

If you prefer your protein from plant-based sources, the Orgain Organic powder is vegan and is our best accessible quality protein powder based on all our testing To fuel up on the go, you can reach for the Muscle Milk Pro Advanced Nutrition Shake, which delivers 32 grams of protein in a tasty pre-made shake.

To help your muscles produce energy faster, there’s Sports Research’s Creatine Monohydrate. It’s Informed Sport-certified to be free of contamination from banned substances and delivers 5 grams of micronized creatine per serving.

If you need an energy and brain function boost, Nature Made Vitamin B12 is nearly 60 percent off right now. For gut health and digestive support, the Ritual Synbiotic+ which is featured in our guide to the best supplements for men, is marked down (just click the on-page coupon). Bundle that with our favorite multivitamin for men under 30, the Ritual Multivitamin for Men, to save $15.

Because it’s still hot out there, consider picking up DripDrop Hydration Packets. These earned a spot on our guide to the best electrolyte powders thanks to their grit-free formula and affordability. The individual packets travel well and can be tossed into a bottle of water when the need strikes.

When recovery time hits, reach for Nature Made Magnesium Citrate or Garden of Life Magnesium Citrate Supplement Gummies to support muscle function. Both are go down easy and are featured on our guide to the best magnesium supplements.

More Great Summer Sales

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Now 49% Off

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Korin Miller is a freelance writer specializing in general wellness, sexual health and relationships, and lifestyle trends, with work appearing in Men’s Health, Women’s Health, Self, Glamour, and more. She has a master’s degree from American University, lives by the beach, and hopes to own a teacup pig and taco truck one day.

Headshot of Charles Thorp, NASM

Charles Thorp is the Fitness and Commerce Editor at Men’s Health, where he shares the best product recommendations in gym equipment, recovery tools, supplements, and more. Following an early life in athletics, Charles became a NASM-certified trainer and began writing programs alongside the most respected coaches in the world.  

Since entering the world of fitness content, Charles has had the opportunity to learn from and train alongside high performance individuals from the NFL, UFC, NBA, Formula 1, CrossFit, US Olympics, and Navy SEALs. When he’s not writing about training programs or gear, he can be seen at the gym or in the wild, putting them to the test.