Toddlers are notoriously picky eaters, who often prefer simple carbohydrates over high protein foods. Finding toddler-friendly, easy-to-eat foods that are high in protein can be challenging. Good toddler protein sources include meat, poultry, eggs and beans.

Although soy and meat are both rich in dietary protein, they differ greatly in nutritional content. Both soy and meat proteins are high-quality, complete proteins because they contain all of the essential amino acids your body requires daily. However, soy offers nutrients meat lacks, and vice versa.

A steaming bowl of oatmeal is a healthy, cholesterol-lowering breakfast that tastes great on cold mornings. Give your oatmeal extra punch by stirring in a scoop of protein powder. Protein helps to rebuild damaged muscles and gives you stamina to keep going until lunchtime.

Protein is necessary in a baby's diet because it supports the health of cells, tissues and organs as a baby grows, according to AskDr.Sears.com. Some sources of protein are considered complete while others should be combined with foods that also contain protein.

Amino acids are the building blocks of proteins, so the foods with the highest amount of amino acids are those that are highest in protein. Of the 20 amino acids, nine are essential because your body can't make them.

Before you hit the road for your regular jog, you might be looking for that quick, easy energy boost from a preworkout snack. While many joggers and runners turn to energy gels, bars and sports drinks, another option you have available to you is protein shakes.

Once thought of as a supplement for bodybuilders, protein powder is now used by people from all walks of life to enhance protein intake. Protein powders come in a range of flavors such as chocolate, vanilla, strawberry, banana and fruit blends.

Essential for life, dietary protein can come from many different sources. Whey protein is an animal source derived from milk, and hemp protein is a vegetable source derived from the Cannabis sativa plant.

Testosterone is a hormone called an androgen and is present in the bodies of both males and females. According to the National Institutes of Health, normal testosterone levels range from 30 to 95 ng/dL, or nanograms per deciiter, in women and between 300 and 1200 ng/dL in men.

Carbon dioxide (CO2) is a gas that's always present in your blood. It is the waste product generated as your body uses up oxygen, and it is expelled from the lungs when you exhale.

Stop by the protein powder section in virtually any health food store, and you're likely to find a variety of whey protein options. And while you don't need protein supplements for good health -- even if you're trying to change your weight -- adding whey protein to your diet can help you reach your goals.

While anabolic, or muscle-building, protein is a staple supplement for bodybuilders and strength athletes, it does have a number of uses besides helping you gain maximum muscle mass.