5 performance supplements that are worth it
Oxygen delivery, lactate, buffering, power. Five different supplements with specific jobs.
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TheFeed promotes five performance supplements with real evidence from elite athletes, organized by their functions. These supplements aim to enhance fueling and training, including products like Oxygen Delivery Amacx Beet Shot and SwissRX Nitric Oxide Pro. They offer various benefits such as increased oxygen delivery and reduced lactate and oxidative stress.
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Every week there’s a new “game-changer” in the endurance world. Problem is, most of those aren’t proven quite yet. So here are five supplements that have real evidence (via elite athletes), organized by what they actually do. These supplements don’t replace fueling or training, they simply enhance both when you have the basics already dialed in.
Oxygen Delivery
Amacx Beet Shot: 500mg of dietary nitrate per shot from a concentrated beetroot extract. The body converts nitrate into nitric oxide, which widens blood vessels and allows more oxygen to reach working muscles. Take 1 shot 2.5-3 hours before go time. Or load it daily for 3-7 days before a race.
SwissRX Nitric Oxide Pro: Same goal as the beet shot, but a totally different route. A beet shot is a timing game. You plan around that 2.5 to 3-hour window and hope you remember. Nitric Oxide Pro is built to be always on. It’s built on Noxa24®, a garlic-based formula that was originally developed for people with high blood pressure. (Don’t worry, no garlic breath.) It works through multiple pathways at once, so your nitric oxide levels stay elevated for a full 24 hours instead of spiking and fading. Take two capsules in the morning and that’s it.
Lactate and Oxidative Stress
Nomio: This one is all the rage in 2026. It’s concentrated broccoli sprout compounds in a 60ml shot. Double-blind research cited 12% less blood lactate at the same workload and 10% lower oxidative stress. Take one shot 3 hours before a key session, with a second shot before bed during heavy training blocks. Fun fact: Andreas Almgren, a prominent Nomio user, won his marathon debut at this year’s NYC Marathon. You can read more about how he fueled here.
Nomio + Amacx Beet Shot Pack: They’re not competing, they’re on the same team. Beets are the delivery play: more oxygen-rich blood reaching your working muscles. Nomio is the defense play: less lactate, less oxidative stress, faster recovery. Run the beet shot before hard sessions and Nomio to blunt the fatigue and bounce back quicker. Two shots, two pathways, and both toss right in your bag. Get 10% cash back as Feed Cash when you grab the pack.
Buffering
FlyCarb Bicarb: Sodium bicarbonate buffers the hydrogen ions that build up during all-out efforts, helping you hold higher power deeper into tough efforts where athletes normally break down. Mix and drink 90-120 minutes before the hardest part of a race or session. Max twice per week.
Power and Fatigue Resistance
Feed Lab Creatine: It’s the most researched performance supplement there is, and it only works if you take it every day. That’s why price matters. A tub you can afford to finish beats a premium one you ration. Each scoop is 5g. Stir it into a protein shake or a hydration bottle and it’s done. Expect more snap in your legs for sprints, surges, and climbs, plus less muscle fatigue and faster recovery between hard sessions.
Pick the performance supplement that matches where you’re at in training and what you feel like could take you to the next level.
Button Shop High-Performance Supplements
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