While eating sugar right before a bodybuilding session can help, it's not as important as you might think. Your muscles mostly use glycogen, which is saved from the food you ate during the day. If you do eat sugar before a workout, try to stick to 30–60 grams of fast-digesting carbs, based on your size and what you ate recently.
When you eat sugar before a workout, it quickly enters your bloodstream, raising blood sugar and starting an insulin response. However, this doesn't mean that your muscles will get more fuel during the lift. During resistance training, your muscles don't use glucose from the blood as much as they use stored muscle glycogen. The food you ate hours before your workout has already changed those glycogen stores more than any sugar you add at the last minute will.
Getting carbs right before you work out can make more glucose available, but how well you do depends a lot on what's already in your muscles. If you've already eaten a lot of carbs, adding more sugar won't help much. Different people also react differently. Some can handle carbs well before a workout, while others have stomach problems that make their workouts worse instead of better.
But faster doesn't always mean better. The carbs you eat before a workout should take into account what you've already eaten. If you already got all the simple carbohydrates you need from a recent meal, adding more sugar won't help much. Since there is already enough glucose in the blood before strength training, the type of carbohydrate doesn't matter as much as the total amount eaten during the day.
Some people also have reactive hypoglycemia, which is when their blood sugar drops quickly after a fast rise, making them feel tired at the worst possible time. If you're sensitive to changes in insulin and train 15 to 30 minutes after eating simple sugars, this is more likely to happen.
If your stomach gets upset quickly, eating high-sugar foods before hard workouts can also make you sick. In those situations, it's better to rely on what you ate earlier instead of adding sugar right before.
How Sugar Actually Fuels Your Muscles Before a Lift
When you eat sugar before a workout, it quickly enters your bloodstream, raising blood sugar and starting an insulin response. However, this doesn't mean that your muscles will get more fuel during the lift. During resistance training, your muscles don't use glucose from the blood as much as they use stored muscle glycogen. The food you ate hours before your workout has already changed those glycogen stores more than any sugar you add at the last minute will.
Getting carbs right before you work out can make more glucose available, but how well you do depends a lot on what's already in your muscles. If you've already eaten a lot of carbs, adding more sugar won't help much. Different people also react differently. Some can handle carbs well before a workout, while others have stomach problems that make their workouts worse instead of better.
The Best Types of Sugar to Eat Before Training
Different types of carbs before a workout have different effects, and these differences are more important than most bodybuilders think. When planning how long to eat before a workout, digestion speed affects how quickly glucose gets into your bloodstream. Before working out, carbs that are broken down quickly, like white rice, fruit, or sports drinks, raise blood sugar more quickly than oats or whole grains. This makes them better for eating 30 to 60 minutes before you work out.But faster doesn't always mean better. The carbs you eat before a workout should take into account what you've already eaten. If you already got all the simple carbohydrates you need from a recent meal, adding more sugar won't help much. Since there is already enough glucose in the blood before strength training, the type of carbohydrate doesn't matter as much as the total amount eaten during the day.
How Long Before Training Should You Eat Sugar?
When you eat sugar before a workout depends on how fast your body digests it and how much time you have before you lift. If you eat sugar 30 to 60 minutes before bodybuilding, your blood sugar will rise quickly. This will give your body fuel before your session starts. It can also help to eat within 15 minutes of your workout, since carbs don't have to be fully absorbed before pulling to help with early performance. But quickly eating sugar can cause insulin levels to rise, which can temporarily stop fat burning. This may or may not matter for your goals. If you ate a meal with carbs one to two hours before your workout, the time you eat your sugar becomes less important. Since your blood sugar is probably still high, you probably don't need to take any more sugar for most normal bodybuilding workouts.
How Much Sugar Should You Eat Before Training?
The amount of sugar you need before working out depends on your body weight, how recently you ate, and how long and hard your workout is going to be. According to research on resistance training, a good starting point is between 30 and 60 grams of carbs right before lifting. Higher training volume workouts might explain the higher end. More carbs may help you keep up your effort during later sets if you're trying to get bigger muscles through longer, harder workouts. You may need less, though, if you've eaten a full meal in the last two to three hours. Sugar and workout performance aren't strictly dose-dependent, which means that eating more won't always make you perform better. Start slowly and see how you feel and how well you do. Then make changes based on what you learn.When Pre-Workout Sugar Hurts More Than It Helps
In some situations, sugar before a workout can help you do better, but it can also hurt you. Adding sugar right before lifting won't help if you've already eaten a carb-heavy meal in the last few hours, and it may even make you bloated or uncomfortable during your workout.Some people also have reactive hypoglycemia, which is when their blood sugar drops quickly after a fast rise, making them feel tired at the worst possible time. If you're sensitive to changes in insulin and train 15 to 30 minutes after eating simple sugars, this is more likely to happen.
If your stomach gets upset quickly, eating high-sugar foods before hard workouts can also make you sick. In those situations, it's better to rely on what you ate earlier instead of adding sugar right before.
