Whey protein supplements are popular choices for non-vegetarian athletes and physically active people looking to increase their muscle mass. Proteins are the basic building block of all bodily tissue, including muscle tissue, so it plays an important role in shaping your physique. There are very few side effects associated with whey protein but drowsiness can occur sometimes. Consult your doctor before you start a whey protein supplement regimen.
The Facts
Bodybuilders, weightlifters and other athletes consume whey protein supplements in an effort to maximize their muscle tone. Whey protein is considered to be a high-quality protein source, also known as a complete protein source, because it contains all of the essential amino acids the human body needs. Consuming too much protein can lead to negative side effects, such as increased risk of heart disease, higher cholesterol levels and weight gain.
Whey Protein
Whey protein is derived from cow's milk. It is one of the two major proteins found in milk, and it makes up 20 percent of the total milk protein. There are three main types of whey protein, according to the University of Illinois McKinley Health Center, including whey protein concentrate, isolate and hydrolysates. Each type offers varying quality and protein content. If you are concerned about lactose, you should opt for the whey protein isolate rather than whey protein concentrate.
RDA
According to the Centers for Disease Control and Prevention, or CDC, the recommended daily allowance, or RDA, for protein for adult women is 46 g per day and 56 g per day for adult men. Another way to determine the RDA specific to your exact body weight, multiply your body weight in kilograms by 0.8. According to the University of Illinois McKinley Health Center, athletes may need 40 to 50 g of whey protein in addition to the protein consumed through food.
Drowsiness
Whey protein supplements contain various amounts of all-natural amino acids, including essential amino acids which are not produced by the human body. One of these amino acids is called tryptophan -- a name that may come up a lot during Thanksgiving time. Tryptophan is an essential amino acid that can cause drowsiness in high concentrations, so whey protein supplements that contain lots of this amino acid may be causing your to become drowsy. Be sure that you're following the manufacturer's recommended dosage. Consult your doctor to be sure that it's not anything more serious.
Benefits
The benefits of consuming whey protein in moderation are plentiful, according to the University of Illinois McKinley Health Center. The branch chain amino acids within whey protein help to build muscle and improve your immune system. Also, whey protein is one of the most easily absorbed protein sources in the body, making it a comparatively high-quality source of protein. Taking the recommended amount of whey protein daily is generally recognized as safe.
Theories/Speculation
The University of Illinois McKinley Health Center points out that several studies on whey protein have suggested that it may offer an even greater range of health benefits than originally thought. These benefits include reduced risk of heart disease and cancer, improved diabetes management and as an effective treatment for wound healing. As of 2010, further research is necessary to label these statements as facts.
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