The human body requires a long list of nutrients daily. The essentials, though, are referred to as macronutrients, and your body needs them to stay healthy and perform optimally.
protein consists of amino acids that act as the body's main building
blocks for tissues, such as muscle, skin, bone, and hair. Proteins also
assist in many reactions in the body, including the production of
enzymes (the catalysts that keep all body processes running smoothly),
hormones, and antibodies. The best protein sources are meats, poultry
and seafood, beans and peas, nuts, eggs, and soy products.
body uses fats for energy when carbohydrates aren't available. You also
need fats as insulation, to help your body absorb fat-soluble vitamins,
and to protect your organs. Fats come in both liquid and solid forms.
The best sources of healthful fats are the liquid monounsaturated and
polyunsaturated fats found in olive oil, soybean oil, and avocados, as
well as fatty fish rich in omega-3 fatty acids.
are the body's main energy source and the brain's only source of fuel.
Your body breaks carbohydrates down into glucose, which cells require to
create energy. The best sources of carbohydrates are whole grains and
foods made from grains, such as whole-wheat bread, bulgur, barley,
oatmeal, brown rice, and cornmeal.
Vitamins and minerals
need vitamins and minerals for numerous physiological functions that
help you survive. They're essential for normal growth and development,
and each one plays a unique role in helping to maintain optimal health.
For example, calcium and vitamin D are necessary for healthy bones, and
the B vitamins help support the nervous system. Vitamins and minerals
come from a variety of foods, including fruits and vegetables.
probably heard that you can live for weeks without food but only days
without water. That's because water is the most important essential
nutrient. It is involved in many of your body's vital functions, and it
distributes other essential nutrients to your cells.