What to Eat Before a Workout, According to Nutritionists

You’ve signed up for a new gym membership (that you’re actually going to use), your athleisure ’fit checks all the boxes (comfy, cute, and won’t show sweat stains), and now all you have to do is start working out, right? Before you begin, there are a few other things to consider, like what to eat before a workout. Some people swear by eating shortly before a sweat sesh, while others live by the idea that fasted workouts are key to maintaining physical fitness. So, is it okay to eat beforehand? And if so, what should you be eating?

To put it simply, yes, you should eat before a workout. “Recent studies show there is no difference in fat loss between fasted or nonfasted workouts,” says Dylan Davies, cofounder and CEO of boutique gym Lift Society and a certified nutritionist. For this reason, she recommends eating ahead of a workout. “By definition, a fasted workout is doing a workout after not eating for 10 to 14 hours,” adds Erin Barrett, PhD, nutritional biochemist and director of product innovation and scientific affairs at supplement maker Shaklee. “While this may increase fat burning while you exercise, it does not lead to increased fat loss overall.” So, needless to say, Dr. Barrett is also a fan of eating before working out.

To help further clear things up, we tapped top nutritionists who had a lot to say about the matter. Here’s everything you need to know about what to eat before a workout.

Reasons for eating before you work out:

Dr. Barrett gives the following reasons for why you should eat before exercising.

• Energy: Eating before a workout provides a source of fuel for your body (boosting endurance and performance, and reducing the likelihood of bonking). Carbohydrates are a primary energy source during exercise that can help fuel your workout.

• Improved performance: When your body has sufficient fuel, it can perform better during exercise.

• Recovery: Eating a carbohydrate-rich snack before (and after) you exercise can help jump-start the recovery process.

What should I eat before working out?

“I recommend eating carbs and having a small amount of caffeine about 30 minutes before a workout for best results,” says Davies. Dr. Barrett agrees, adding that it’s ideal to eat before you exercise to “provide energy and support performance and recovery.” Her recommendation: “a high-carbohydrate, moderate-protein snack.” She also suggests incorporating a preworkout drink like Shaklee’s Pre-Workout, as it provides natural caffeine derived from green tea.

Davies likes to combine carbohydrates and protein in her own preworkout snack, saying that her first choice is a high-carb protein shake. Her recipe: “I blend one banana, nonfat Greek yogurt, berries, almond milk, and whey protein isolate.” Once mixed together, the shake has about 300 calories, 40 grams protein, and 65 grams carbohydrates. “Sticking with foods your body is familiar with is a big help,” she says. “Other preworkout foods can include fruit, rice cakes with sliced meat, toast with egg whites, or even a protein bar if you’re on the go.”

Avoid high-fat foods.

If you’ve ever been mid-run or partway through a workout class and felt the urge to rush to the bathroom, it could be because of what you ate beforehand. Davies suggests avoiding high-fat foods like fried foods, spicy foods, and full-fat dairy products. She explains that “foods that are high in fat take longer to digest and do not feel great before a workout,” but carbs and proteins should be more tolerable and better for boosting your energy.