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As much as exercise hits your body with a barrage of feel-good hormones, it also puts your body in a state of stress. From your gut to your heart, every cell is working hard to maintain all bodily functions while you work out.
That’s why it’s so important to get proper nutrition and fuel your body with foods rich in vitamins and antioxidants.
Exercise produces stress on the body, and that increases the need for certain nutrients that the body might otherwise be able to produce enough of.
Take the amino acid, glutamine, for example. Your body produces it, but when your body is under stress during exercise, you need more of it to repair muscle, including the digestive tract lining.
11 Key Nutrients for Muscle Building
1. Water
You already know how important it is to drink enough H2O for replenishing fluids before, during and after a workout. However, staying correctly hydrated also aids digestion and nutrient absorption. Hydration is more than just quenching thirst; it means water carries nutrients to the muscles for them to do their work.
2. Protein
Protein is one of the essential macronutrients for muscle growth and repair because it’s packed with amino acids that your body does and doesn’t produce. That’s why it’s necessary to have protein post-workout to restore these muscle-building macronutrients. Proteins not only help rebuild and build lean body mass, but they’re also a core part of enzymes and hormones that help communicate with the body to repair itself.
3. Calcium
Calcium does more than help build strong bones and prevent osteoporosis. The mineral is responsible for triggering muscle contraction. Muscles comprise two protein filaments: myosin and actin. When muscle contraction occurs, these filaments slide over each other to convert ATP (adenosine triphosphate), aka the way your body stores and uses energy. The more you exercise, the more ATP your body needs to keep your muscles moving.
4. Magnesium
Feeling more tired than usual? A magnesium deficiency could be to blame. As one of the best de-stressing minerals, magnesium is essential for muscle relaxation and preventing cramps. Together with calcium, magnesium works to help reduce blood pressure and promote better sleep.
5. Glutamine
You might have heard of non-essential (meaning your body can produce it) and essential (meaning your body can’t provide it) amino acids, but there are also conditionally essential amino acids. Koff says your body needs more conditionally essential amino acids, such as glutamine, during intense workouts.
Glutamine helps repair muscle tissue, including the lining of the digestive tract, especially when the body has experienced stress during high-intensity exercises, like weightlifting and HIIT. Glutamine is also essential for maintaining gut function and boosting the immune system.
6. Vitamin D
The sunshine vitamin is probably best known for ensuring strong bones, but it’s also critical for strong glutes, biceps and everything in between. Vitamin D is linked to healthy hormones like testosterone, which helps with muscle maintenance and growth.
A daily dose of D can also improve your mental health and help reduce anxiety. Because not that many foods are rich in vitamin D, some doctors and nutritionists recommend taking a supplement.
7. Potassium
Just like calcium and magnesium, potassium is a crucial electrolyte in muscle contraction. However, it’s also essential for carrying other nutrients to your muscles. Potassium brings water, along with other nutrients, into muscle cells. They work in opposition to sodium.
Potassium helps your kidneys flush out the excess sodium in your body. What’s more: New studies have shown that people who don’t get enough potassium are at higher risk for hypertension and heart disease.
8. Carbohydrates
Contrary to what you might believe, carbs are one of the best building blocks of muscles. They’re the key nutrient to support muscle growth and repair. As the best source of glycogen, carbs help fuel your workouts and rebuild muscles more effectively post-workout.
Runners aren’t the only ones who can benefit from carb loading. Everyone from weightlifters to HIIT enthusiasts needs to restore glycogen stores after an intense sweat session.
9. Vitamin B12
Vitamin B12 (cobalamin) belongs to a set of eight B vitamins known as the vitamin B complex. However, what sets B12 apart is it assists in creating red blood cells, which contain hemoglobin that binds to oxygen. [Iron] builds red blood cells, which carry oxygen to muscle, and helps metabolize protein and fats for use in muscle building and repair.
10. Iron
If you want to know why Popeye was slamming down cans of spinach, it’s because the leafy green is packed with iron, a mineral that brings oxygen to muscle tissue. It also helps regulate metabolism and promotes a healthy immune system. Without enough iron, your red blood cells can’t carry oxygen to your muscles and the tissues that need it.
11. Beta-Alanine
Muscle cramps are one of the most common sleep complaints. The good news: Beta-alanine, a non-essential amino acid, has been shown to help people stave off muscle cramps from doing intense workouts.
Beta-alanine helps produce carnosine, which balances the pH in muscles and fights against lactic acid buildup that leads to fatigue and cramping. Vitamins C and E can help combat inflammation from excessive exercise. Vitamin C helps with muscle repair as it supports collagen production, and vitamin E helps remove free radicals produced after a workout.
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