Foods rich in magnesium, potassium, and calcium are essential for heart health and muscle function. Discover the best dietary sources for iron and B12, and learn how steaming vegetables compares to boiling for nutrient preservation.
Low levels of potassium can cause feelings of weakness, muscle spasms or irregular heartbeat. Your doctor will tell you if you have clinically low levels after running a simple blood test. Potassium levels may also temporarily become lower after a sweaty workout or after a bout of diarrhea and vomiting.
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Vitamins don't provide energy, like carbohydrates, proteins and fats, but they are essential compounds that help the body grow and function optimally.
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Glutamine is an amino acid, an essential building block of protein. Under normal circumstances, your body produces enough to support healthy bodily functions. But, if your body is under stress -- from trauma or an extreme athletic endeavor, such as a marathon -- you may benefit from adding more glutamine to your diet.
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Vitamin B12 is essential to healthy red blood cell formation and proper neurological functioning, but a lot of people who are deficient go undiagnosed. Your doctor can help you determine if you are in need of a supplement to bring you up to healthy levels.
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