Best Prime Day Sports Nutrition Deals: Day 4
- Save big on protein, with 42% off Optimum Nutrition’s Gold Standard Whey, 44% off Grenade Protein Bars and 22% off MyProtein’s Impact Whey.
- Bulking up with creatine? Some of our top-rated powders are in the sale, including Protein Works Creatine Monohydrate, down to just £5.99, Optimum Nutrition’s super fine micronised creatine, with 46% off, and a whopping 53% off Warrior Creatine Monohydrate Powder.
- You work hard, you need to replenish those salts. Bag a deal on electrolytes, with 15% off Puresport’s delicious Raspberry Salt sachets, and both HIGH5 and Phizz Electrolytes cut down to half price.
Backing up your training with sports supplements is a tried and tested recipe for boosting muscle growth and powering your workouts. Whether its a post-gym protein shake, daily scoop of creatine or a mid-run electrolyte drink, dialling in on a nutrition strategy that supports your goals is a surefire way to supercharge your performance both in and outside of the gym.
Shop Prime Day Sports Nutrition Deals
But the best sports supplements don’t come cheap. That’s why, when an Amazon sale comes around, it’s worth spending time taking stock of your supplies and making use of the limited-time deals from across your favourite brands. Prime Day is Amazon’s biggest sale outside of Black Friday and it’s now here, running from today until Friday 12 July – four whole days (or 96 hours) of savings. We’ve already spotted sizeable discounts on some of our top-rated sports supplements, from whey and vegan protein powders to energy drinks, pre-workouts and creatine.
Prime Day Sports Nutrition Deals
Optimum Nutrition Gold Standard 100% Whey (450g)
Now 42% Off
Was £22, now £12.69
SAVE £9.31
Grenade High Protein, Low Sugar Bar
Now 44% Off
Was £30.99, now £17.45
SAVE 44%
Bulk Pure Whey Protein
Now 19% Off
Was £13.49, now £10.95
SAVE 19%
Optimum Nutrition Micronised Creatine Powder
Now 46% Off
Was £40, now £21.49
SAVE £18.51
Puresport Ultra Electrolytes (Raspberry Salt/30 Sachets)
Now 15% Off
Was £33, now £28.05
SAVE 15%
Myprotein Impact Whey Protein
Now 22% Off
Was £23.90, now £18.61
SAVE 22%
Warrior Creatine Powder
Now 53% Off
Was £14.99, now £6.99
SAVE 53%
Myprotein Creatine Monohydrate
Now 26% Off
Was £11.39, now £8.42
SAVE 26%
Phizz Electrolytes, Multivitamin & Hydration Tablets
Now 50% Off
Was £8, now £3.99
SAVE 50%
Warrior Creatine Monohydrate Powder
Now 33% Off
Was £19.99, now £13.39
SAVE £6.60
HIGH5 Zero Electrolyte Hydration Tablets
Now 50% Off
Was £7.99, now £3.39
SAVE 50%
Warrior Rage Pre-workout (392g)
Now 15% Off
Was £12, now £10.20
SAVE 15%
Form Pureblend Vegan Protein
Now 10% Off
Was £26, now £23.40
SAVE 10%
Protein Works Creatine Monohydrate
Now 20% Off
Was £7.49, now £5.99
SAVE 20%
Protein Works Vegan Protein Powder (1kg)
Now 35% Off
Was £16.99, now £10.99
SAVE 35%
Science in Sport Beta Fuel Dual (6 Pack)
Now 21% Off
Was £11.99, now £9.50
SAVE 21%
Optimum Nutrition Electrolyte Powder
Now 30% Off
Was £10, now £6.99
SAVE 30%
HUMANTRA Hydration Packets
Now 20% Off
Was £28, now £22.40
SAVE 20%
You can currently bag 42% off Optimum Nutrition’s Gold Standard Whey, our top-rated whey protein powder, and 10% off our best on-test vegan protein powder from Form Nutrition. Keen to tap into the muscle building potential of creatine monohydrate? A large tub of Optimum Nutrition’s micronised powder is now almost half price, down to £21.89, while 30 sachets of Puresport electrolytes is 15% off.
Whatever you’re looking to stock up on, be sure to make use of these deals while they’re here. You have four days to make use of these Prime Day savings before they go back to their normal prices. Above, we’ve rounded up the best Prime Day sports supplement deals on products our gear editors have spotted and verified so far.
When Does Prime Day End?
Prime Day 2025 ends tonight, Friday 11th July, and if you’re serious about fuelling your training, now’s the time to stock up. The sale kicked off on Tuesday 8th July, but the clock’s ticking on some of the best sports nutrition deals you’ll see all year.
From protein powders and creatine to hydration tablets and recovery supplements, Prime Day is packed with savings on big-name brands. Think Myprotein, Optimum Nutrition, and Grenade — all with serious discounts, but only for a few more hours.
Expect even deeper cuts in these final moments, but don’t hang about. Once the clock strikes midnight, it’s all over and prices go back to full whack. So whether you’re training for a marathon or just levelling up your gym stack, this is your last shot to save. Move fast — your gains (and your wallet) will thank you.
More of Our Favourite Sports Supplements
Best Protein Powder | Best Whey Protein Powder | Best Vegan Protein Powder | Best Mass Gainers | Best Meal Replacement Shakes | Best Protein Bars | Best Vegan Protein Bars | Best Creatine | Best Pre-Workouts | Best Energy Drinks | Best Electrolytes
Luke Chamberlain is the ecommerce editor for Men’s Health UK where he compiles expert-led buying guides and in-depth product reviews across gym wear, fitness tech, supplements, and grooming. Responsible for testing everything from the latest gym headphones to the best manscaping tools, Luke also enlists the help of leading health and wellness experts to help readers make informed choices when shopping online – whether it’s to debunk the latest viral hair growth trend or to get the lowdown on a new type of recovery tech. He also covers major sales events for Men’s Health, such as Black Friday and Amazon Prime Day, scouting and verifying hundreds of discounts in order to recommend only the most genuine deals on offer. A magazine journalism graduate from the University of Sheffield in 2018, Luke has also worked as assistant editor for Outdoor Swimmer magazine and as an ecommerce writer for The Recommended. When he’s not testing the latest health and fitness products, he’s busy plotting routes for his next trail run or gravel ride out of London. Follow Luke on Instagram at @lukeochamb