The Feed Insider

Protein on the label doesn't equal protein in your muscles. Here's something about amino acids you may not know, and the fastest way to get them to working muscles.

June had a theme and I didn't plan it: find out what holds up under pressure. With summer in full swing, we're finding out which products are holding their own and what our athletes are really made of.

The summer heat is on, which means your fueling plan may need a little tuning. Hotter training can change both your needs and your products. We froze 25+ gels to find out which ones will transform your training and which ones you should avoid.

When you spend just as much time traveling to events as you do training for them, you learn a thing or two about how to pack a bag. From nutrition while flying to race day fuel, Erika Ackerlund shares her tips for packing for performance when traveling internationally.

Energy chews can be a useful tool for marathon runners. Chews solve some of the fueling problems athletes face through variety in texture, flavor format, delivery, and portion size. This guide covers the best options for marathon runners, how to use them across all 26.2 miles, and where they fit in your race-day fueling plan.

You wouldn't think that the two most influential products of 2026 would come from plain old veggies. Here are the products leading the charge on performance gains and what you should know about them.

The right water bottle depends on what you're doing with it. A lightweight race bidon built for cage fit and high flow at 25 mph is a different tool than a vacuum-insulated steel bottle designed to keep your drink cold across a full workday. This guide covers the best options across cycling, everyday carry, and everything in between.

Creatine is one of the few supplements with decades of research behind it and a list of proven performance benefits. The question most people get stuck on isn't whether to take it — it's how much. This guide breaks down the dosage based on training, goals, weight, and points you to the best options.

No one has watched HYROX evolve from the inside quite like Hunter McIntyre. He's a five-time world record holder and a big presence throughout the sport's development. Here's what he's learned — about the sport, about performance, and about what actually works.

What's the best electrolyte powder for endurance athletes? It depends — on how long you're out, how much you sweat, and whether you want your bottle to carry carbs or just electrolytes. This guide breaks down the science, compares top options across sodium levels and use cases, and helps you find the right fit.

One of the key elements of summer training is keeping yourself hydrated and cool. Two things that make or break a good day. We've got some tricks to help you keep your bottles colder longer.

After one of my recent workouts, I figured that it cost me $36 in product. That's not reasonable. Here's how to plan your next workout so you can still fuel high-carb and not break the bank.

Fueling with energy chews gives you more control: smaller doses, easier to rotate flavors, and optional caffeine exactly when you need it. This guide breaks down how they work, which ones are worth carrying, and how to pick the right one for your next long day.

When the armband heart rate monitor emerged, it started to change the game for data tracking and training theory. Here's why you should switch to an armband for heart rate tracking and how to use that info to train better.

Heat doesn't just make training and racing uncomfortable — it actively slows you down. Understanding why is the first step to doing something about it and performing under that stress.

When it comes to health and performance, sleep is the number one thing we can benefit from. However, if you are struggling to get the consistent quality you need and have tried "all the things", it just might be your cortisol.

Cramping is one of those problems where the science and real-world experience of athletes don't really align. David Roche has spent the better part of a decade trying to understand them. Here's what he knows about cramps and how to stop them.

Every hard training day comes down to two questions: what does your body need going in, and what does it need once you've emptied the tank? KA-EX, a Swiss brand, built two drinks for exactly those two moments.

Something we've learned is that creatine isn't just for gym bros. See how daily creatine can improve cognitive function, improve your mood, and enhance overall endurance performance.

Sugar-free electrolyte powders are one of the simplest upgrades you can make to your hydration setup. Electrolytes, without the extra sugar that can clash with your fueling plan, simplify your formula. This guide breaks it down and matches the right products to what you need.

The 2026 Unbound 200 was one for the books. Mud, mechanicals, trains — it had everything. Lauren De Crescenzo recaps her daring ride chasing down the podium.

Many athletes are pushing their carb intake higher and higher, chasing performance improvements. One of the biggest missing pieces, though, is fiber intake. Here's why it's the key to unlocking big benefits from big fueling strategies.

50,000 athletes were competing at Hyrox in NYC last week. It's got me thinking about performance — and what actually moves the needle. Here are my top picks from the front lines.

The Feed's Ryan Collins has done it again: winning the European Ultra TT Championship. Here's a brief recap of his day and the tools he used to make it happen.