Challenge what you think you know about diets, nutrition, and why we eat the way we do

We dive into the research and share the best and worst late-night snacking habits for when hunger pangs hit close to bedtime.

Four areas the ultrarunning champion is focused on as she moves further into the master ranks, plus expert advice on how to build your longevity in the sport.

Outside correspondent Kate Siber learned to reinhabit her body by being outdoors. But she didn’t expect that healing would also bring a new perspective on nature itself. 

Is it possible to stay in shape at home without spending a fortune? Wes Siler details his gym setup.

Dialing in your nutrition when you’re on the couch can be hard, especially for an active person. Here’s what you need to know.

5 reasons why you may want to try incorporating a pre-bedtime protein snack to aid your running performance and recovery.

A dietitian weighs in on our favorite packable midday meals

TikTok star Alexis Nikole Nelson says you don't have to live near the woods to gather your own meal. Here's how to get started.

Alternatives to animal products aren't necessarily better for you

How trail runner Keely Henninger found her way back to running after injury gave her a reality check.

The key to a good diet is flexibility

Forget the fancy wearables and complicated training plans. We're going back to the basics on fueling, movement, and recovery. 

Two new studies find performance benefits from high levels of the sunshine vitamin, but they're not the final word

Spoiler: it isn't all that different from real ground beef

Swap your protein shakes for these cozy beverages packed with protein and electrolytes

Food scientists and marketers are creating healthy, plant-based, imitation tuna, crab, and shrimp that look and taste like the real thing. Better yet, switching to faux seafood will help curb our reliance on an international fishing industry that has become an environmental and human-rights disaster.

Figuring out how many calories running burns involves a fairly straightforward calculation, but the overall equation is not as simple as it seems.

Everything you need to know about how to eat for a successful and enjoyable cross country season.

We asked a professional chef and a nutritionist to evaluate ten meals. Here's what rose to the top.

From before your run, to during, to after…We tested the goods.

The performance benefits of the world’s favorite chemical could be washed out if it causes trouble in your gut.

Ready to go beyond the marathon? Check out this introductory guide to ultrarunning and a beginner’s training plan for tackling a 50K.

Athletes tend to have a more diverse gut microbiome. But does it make a difference in athletic performance?

A handful of apps are rebranding the menstrual cycle as a female athlete's untapped superpower. Here's what you need to know about them.

'Tamago kake gohan' is my go-to post-workout meal and takes just 15 minutes to make

There are myriad arguments for and against eating roadkill. Can they all be true at the same time?

Three new studies explore iron patches, injections, and dose frequency

As the country faces meat shortages, it's a good time to experiment with vegetarian or vegan eating. Here's how to start.

'Working Woman's Trans BC Enduro' follows two cyclists as they prepare for a six-day mountain-bike race in the Kootenay Range

Your DNA has a say in your caffeine buzz, but it’s still not clear how genes affect gut sensitivity to caffeine.

Loads of factors within and outside the body contribute to nausea during ultramarathons, but there are some ways to mitigate it.

It’s bad enough sweating it out in scorching heat. Then comes stomach pain or irritated bowels.

Study shows faster marathoners took in significantly more calories and fats—eating more nuts, seeds, fruits and vegetables—than slower marathoners.

A new study out of the University of Montana finds that carbohydrates from just about anywhere do a good job of muscle glycogen recovery, as long as the numbers add up.

Logging miles in brutal conditions? Be sure and replace what you sweat out.

Yes, it tastes great, but it's not a drug

Brittany Griffith says now is the perfect time to have some fun with your diet

Learning how to fuel before, during and after runs will keep you healthy and lead to enhanced performances.

Many male athletes struggle with eating disorders. By sharing his personal experience, Lightner hopes to let others know they are not alone.

New research suggests that the lactate produced by hard interval workouts alters the hormones that determine your appetite

Are probiotics worth the hype? Here’s how they can help boost your training by improving your gut and immunity, and what to look for when shopping for them.

Spoiler alert! Those incessant emails offering the secret sauce or supplement for 100% strength immunity are 100% false. Time to rely upon science-based, expert-approved foods and supplements that actually work to support your immune system.

What to buy, what to cook, and what not to worry about in the age of COVID-19

Nutritionist and journalist Christy Harrison makes a case against the state of nutrition in America in her new book, 'Anti-Diet'

A new spin on a classic, courtesy of ultrarunner Stephanie Howe Violett

Big brands are investing more and more resources in delivery and curbside pickup. Convenient? Maybe. Good for us? Maybe not.

Before trying a fad diet, make sure you have all the information—and eat plenty of calories while you're at it

You don't have to spend a lot to show someone you care

Muscle soreness is part of the training process, but what you consume can reduce it.

Personalized drinks and shakes are the latest innovation in the quest to boost performance

Plenty of food trends from this year should stay in the past. And a few of them should come with you into 2020.

New Year's resolutions be damned. We like things just the way they are.

A guide to help you wade through the misinformation and buy just what you need

A registered dietitian nutritionist could help you solve a mystery gut issue, boost your training, or develop a better relationship with food. Here's how to know what to look for.

Booze isn't optimal for athletic performance. Thankfully, a new crop of alcohol-free cocktails taste just as good as the real thing.

The holidays are all about sharing delicious food with loved ones. These recipes from athletes and chefs will nourish and satisfy.

Crackers crumble. Tortillas mold. Freshly baked bread never disappoints.

The Swedish company Maurten's hydrogel drink has taken the endurance world by storm over the last two years. Now scientists are testing their claims.

This handheld, flavor-filled burrito will warm up the coldest campsite morning

What runners used to believe makes us laugh—and wonder what current “truths” will survive.

We took a peek inside their packs and had a nutritionist grade their choices

Blood glucose monitoring for performance is becoming more common. Here's what you need to know.

And everything else you're wondering about the carbonated-water craze

These underappreciated, nutrient-dense farmers'-market finds are worth adding to your shopping bag

Caffeine is old news on the supplement scene. These next-gen coffee products aim for additional benefits.

A new study presents the best strategies to reduce glycogen depletion, low blood sugar, dehydration, central fatigue, muscle damage, and heat illness in hot weather.

What we teach our kids about nutrition can impact them for the rest of their lives

Making your own delicious performance beverage is as cheap as it is easy

Here's how to tell if you're getting enough of this essential, overlooked nutrient

A good diet is a balance of nutrition, flexibility, and giving your body what it needs

The new program, called Kurbo, could encourage dangerous habits for young people