What to eat before a workout to lose weight and build muscle

The best foods to eat before exercising depend on the type of workout and a person's goals. Foods rich in protein, for example, can help a person to build muscle with resistance training.

When choosing a pre-workout meal, it is important to aim for a balance of macronutrients. Macronutrients are dietary compounds that the body needs in large quantities to function correctly.

The three macronutrients are:

protein
carbohydrates
fat

Macronutrients are all key sources of energy, but each can contribute differently to a pre-workout meal.

Protein

Protein supplies amino acids, and both are essential for a range of bodily functions, including the building, maintenance, and repair of muscle fibers.

Eating a meal that contains a significant amount of lean protein before exercising can help to improve performance.

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Why is protein a good pre-workout food?

Protein can increase the amount of muscle mass gained from a resistance workout.

Intense bouts of resistance exercise damage the muscles, but consuming protein increases the number of amino acids in the body. These work to reduce deterioration, synthesize muscle proteins, and stimulate growth.


Consuming 20–30 grams of protein before a workout can result in an increased rate of muscle protein synthesis that lasts for several hours.

High-protein foods

The following are some examples of healthful foods that are rich in protein:

fish, such as salmon and tuna
poultry, such as chicken and turkey
nuts
beans
lentils
eggs
soy

Anyone interested in gaining muscle should ensure that they receive an adequate overall daily protein intake.

Research has consistently shown that consuming between 1.6 and 1.8 grams of protein for every pound of bodyweight is sufficient for building muscle.

Many sources recommend consuming more, but any additional protein is unlikely to make a significant impact on muscle mass.


Carbohydrates

Carbohydrates are an essential energy source.

Consuming the right amount of carbohydrates before a workout will ensure that the body has enough energy to perform well.

This is true for people engaging in cardiovascular and resistance exercises, among other kinds.

However, different types of carbohydrates will have a different impact:

Simple carbohydrates: These are sugars that provide a rapid rise in energy. A common source of these carbohydrates is white bread.

Complex carbohydrates: These include fiber or starch. They provide a slower, more long-term source of energy. Whole-grain foods are a good source of complex carbohydrates.


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Which type of carbohydrate is better in a pre-workout meal?

Complex carbohydrates have a number of advantages, for example:

Simple carbohydrates are short-term sources of energy. If a pre-workout meal includes too many simple carbohydrates, a person may feel a drop in energy before they finish their workout. Complex carbohydrates provide energy more consistently over a more extended period.

Complex carbohydrates are components of foods that tend to be rich in nutrients, such as beans. Simple carbohydrates are typically components of foods that have little or no nutritional value, such as chocolate bars and cakes.

Foods that contain complex carbohydrates have lower glycemic index scores than those that contain simple carbohydrates. A type of food with a low glycemic index score is unlikely to cause blood glucose levels to spike and increase the risk of type 2 diabetes.

The body digests complex carbohydrates more slowly than simple carbohydrates.

To increase energy ahead of a workout, a person should consume complex carbohydrates 2–3 hours in advance, and any simple carbohydrates 30–60 minutes in advance.


Complex carbohydrate foods

Below are some examples of healthful foods that contain complex carbohydrates:

broccoli, sweet potatoes, and other vegetables
whole-grain pasta
beans
lentils
brown rice
oats
whole-grain bread


Fruits provide the best source of simple carbohydrates before a workout. Bananas are a popular choice, as they contain potassium as well as simple carbohydrates.

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