Worst Foods to Eat Before a Workout

When it comes to healthy eating, there is no one-size-fits-all approach. We all need different things from our meals, depending on our lifestyles. Some people are focused on getting enough protein, others are looking for lower-calorie options, while others are looking for nutritious but filling snacks.

Losing weight is never easy, but eating the wrong foods before a workout will make it harder. When most people think about exercise, they first think about what goes in their bodies. While eating the right foods before exercising is key, what you eat before your workout is also important. Not only does what you eat affect your performance but eating the wrong things before a workout can also cause you to feel sluggish and slow and make it harder for you to work out. Here is the worst food and drink to have before a workout.


Soda may be tasty, but it is one of the worst things to consume before a workout. The carbonation in soda can cause bloating and delayed digestion, which can throw off your energy levels and make it harder for you to perform at your best. Beyond its impact on your workout, carbonated drinks like soda can have detrimental effects on your dental health. The acidity and sugar content in sodas contribute to tooth decay and can erode enamel over time. You may then have to visit an experienced dental health expert, such as this dentist brigham city or a trusted professional in your vicinity, who can help address and prevent dental issues, ensuring a healthy smile alongside your fitness goals. Even worse, many sodas contain a lot of sugar (which can lead to weight gain) and caffeine (which can interfere with your sleep). What is worse, though? Soda is not the only culprit. Many sports drinks are also loaded with sugar and caffeine, and energy drinks are loaded with sugar, caffeine, and guarana (a stimulant that can lead to anxiety). Instead, try drinking seltzer or water with lemon (a natural diuretic that can make you want to go to the bathroom).

Energy drinks

Energy drinks are one of the worst drinks to have before a workout. Energy drinks are carbonated beverages that are loaded with lots of sugar. Sugar acts as a natural energy replacement without the lasting effects of caffeine. Since many energy drinks are made with artificial sweeteners, you may also experience a very sudden crash after the energy wears off.

Fast food

A new study has found that fast food may be one of the worst foods to eat before a workout. Researchers from the McMaster University in Canada and the Canadian School of Sport and Athletic Medicine tested 10 men on treadmills. They found that their blood sugar levels increased after they ate fast food, and their muscles were less able to respond to insulin.


While many people think that flax seeds are one of the healthiest foods to eat, they are actually one of the worst foods to eat before a workout. A post on the MyFitnessPal blog explains exactly why. Flax seeds contain a compound called lignans, which promote estrogenic activity. This can potentially lead to weight gain, bloating, and irregular periods for women.


Smoothies are great. They are easy to drink, easy to mix, and easy to pack. But smoothies are one of the worst drinks to have before a workout. Why? Smoothies are loaded with sugar! This is partially due to the fruit in the smoothie, but the sugar is also added to smoothies at restaurants, so if you are going to the gym, you may already be getting sugar from that.


You will not find many people who disagree with this. No matter how much yogurt is touted as a post-workout recovery food, it is typically the last thing athletes choose to eat before a workout. That is because yogurt is full of sugar, and there’s very little protein or fat in the stuff. If you want to eat yogurt after your workout, go ahead, but wait a few hours first.

High-fat food

We all know that it is good to eat before a workout to prevent muscle cramps, but what you eat makes a big difference. Eating high-fat foods before a workout actually lowers your metabolism, making you work harder and eventually burn fewer calories during your workout.

High-fiber vegetables

High-fiber vegetables are one of the worst foods to eat before a workout. The fiber in these veggies helps slow digestion, making you feel full longer. Keeping your stomach empty for a long time is important when trying to lose weight. This means that you could double your fiber intake and still be okay. The fiber in these veggies can also help your digestive system flush waste out of your system, making you less likely to get cramps or bloating while exercising.

Many athletes and exercisers believe eating a meal or snack before a workout enhances performance. While eating before a workout will not necessarily hurt your athletic performance, one study has found that your body is using more energy to digest food during exercise, making it less likely that the food will be converted into muscle glycogen. Therefore, it is generally not advised to eat before a workout.

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