Colostrum is a special pre-milk fluid a mother secretes 24-48 hours after giving birth and before lactation begins. It is chocked full of vital immune and growth factors whose job it is to build a newborn's immune system. These same ingredients may impart a wide range of benefits for adults-from athletes, to those desiring improved health and those concerned about aging.

The most common type of colostrum supplement used is bovine colostrum from cows. Bovine colostrum is biologically transferable to humans and has been shown to contain four times as much of the powerful immune factors than human colostrum. Bovine colostrum is a rich source of antibodies (immunoglobulins, IgG), growth factors, lactoferrin, cytokines, proteins, enzymes and nutrients, including small amounts of vitamins A, B12 and E, and traces of minerals and all other vitamins.

Growth factors may help repair and reverse damage caused by disease. They help us with such vital functions as rebuilding damaged tissue, supporting muscle and bone growth and repair, and preventing disease. Bovine colostrum contains insulin-like growth factors I and II (IGF-1 and IGF-2), transforming growth factor (TGF), epithelial growth factor (EGF) and even growth hormone. IgF-1 and IGF-2 have been shown to stimulate the immune system and promote cell repair and growth.

Athletes and bodybuilders have come to recognize the important benefits colostrum can provide for both strength building and endurance training. Clinical trials have shown colostrum enhances strength and speed, in addition to increasing insulin levels, which can improve endurance.

Colostrum mimics the actions of growth hormone, which can have anabolic effects on muscle tissue. Unlike growth hormone, IGF can stimulate cell growth itself, including muscle cells. IGF also moves amino acids into muscles, stimulates protein synthesis and prevents protein breakdown.

Colostrum is also effective at enhancing endurance. It increases the uptake of glucose into muscles, which can supply muscles with fuel for long-term exercise.

Preliminary research has also shown colostrum to aid with recovery from exercise and increase fat metabolism. Together, these actions help increase lean muscle mass.

The key immune element found in colostrum are immunoglobulins or antibodies. They can counteract toxins, viruses and bacteria. Many scientific studies have shown immunoglobulins to be effective against infectious microorganisms. Taking colostrum supplements can add back in antibodies and immune factors including the full range of immunoglobulins--IgA, IgD, IgE, IgG and IgM. Colostrum simply strengthens your immune system so it can do the work.

Colostrum works in both the bloodstream and gastrointestinal tract to support intestinal health. Most pathogens enter the body through the intestinal tract. In order to remain healthy, it is critical to combat these organisms. With antibodies and a full range of immune factors, colostrum can help maintain a strong intestinal lining. It can also promote healthy intestinal flora to support better digestion.

Lactoferrin is an immunostimulatory substance may provide general antimicrobial protection in the gastroinstestinal tract. It helps increase the availability and absorption of nutrients and helps oxygenate tissues and stimulate white blood cell activity. It also takes away the iron that invading microbes use to multiply.

Colostrum helps slow the aging process and optimize cell reproduction. Growth factors help repair aged skin collagen. In particular, epithelial growth factor (EGF) helps protect and maintain the skin. Along with other growth factors, EGF can stimulate normal skin growth and cellular tissue repair.

The dosage for colostrum varies depending on the use. For general health maintenance, 500-1,000 mg per day is an effective dose. For immune support and athletic enhancement, try 1,500-3,000 mg per day.

As we age, our immune system becomes depleted, which can degenerate our health. With environmental and physical stress part of our everyday life, having extra support is an important part of good health plan.