animal protein actually causes osteoporosis , whether dairy or other animal sources. Even though milk etc may have high amounts of calcium , the net effect of drinking milk is demineralisation of bones . Taking calcium will not replace this demineralisation . It is acceptable to have some animal protein , including dairy , but it does not promote bone health ;the opposite is true.

Eating protein is rarely mentioned by these professional associations in the discussion of osteoporosis even though bones and teeth are approximately 50% protein. Other sources falsely claim animal protein is the cause of osteoporosis. These fraudulent studies claimed to be high protein diets but instead used isolated, fractionated amino acids obtained from milk or eggs. (9) They did not use protein from meat. They failed to include all the other vitamins and minerals found in meat which are necessary for the metabolism of calcium. A more accurate study proved protein from meat does not cause a calcium loss.(10) The lysine amino acid found in red meat is essential in children for bone formation. Red meat builds strong bones in kids.

Protein

Bone is a living body component with blood vessels, nerves and the periodic replacement of cells. The bone matrix consists of 25% water, 25% protein fibers and 50% mineral salts. Protein high tensile strength collagen fibers are the component in bone formation that gives the bone structural strength. This is analogous to reinforcing steel, informally called rebar, in steel reinforced concrete structures. The mineral deposits in bone consist of crystallized mineral salts in the form of tricalcium phosphate with some calcium carbonate and smaller amounts of magnesium hydroxide, fluoride and sulfate. This mineral formation provides the compressive strength in the bone similar to the concrete in reinforced concrete structures.

A bending load applied to the bone places one side of the bone in compression and the other side in tension. The compressive strength of the mineral deposit is normally sufficient to resist a compression failure. However, mineral deposits are very weak in tension. The protein fibers are placed in tension and give bones their high strength and resistance to fracture. Failure of the bone occurs when the tensile strength of the protein fiber is exceeded. This is the normal fracture method when someone breaks an arm, leg or hip joint. A crushing compression failure can occur locally when the bone is subjected to impact from a foreign object. A loss of strength in the protein lattice is the normal cause of hip fractures contrary to the standard medical propaganda that hip fractures are caused by calcium loss. These hip fractures are not generally caused by the compression failure of the mineral deposit but are a tension failure of the protein lattice. The head of the femur (upper leg bone) is offset at an angle as it aligns with the hipbone socket. This offset and the weight of a person who is standing places a bending moment in the small diameter neck section just below the head. The bending moment (an engineering term for the way forces are applied) creates both tension and compression stresses, whereas the straight section of the femur generally has only compression stress from the vertical load. The tension stress causes a failure whereby the head is broken from the femur, and the common hip fracture is the result. Compression fractures do occur but are more common in the spine.

A lie put forth by vegetarians and animal rights proponents suggest that eating meat weakens the bones because more calcium is excreted in the urine. It is true that eating animal products increase calcium in the urine during the first few weeks of a low-carbohydrate diet, but they fail to tell you that calcium excretion soon normalizes and animal protein begins to increase the absorption of calcium in the intestinal tract. These studies by vegetarians and animal rights proponents are a fraud that distorts the truth. A large study published by the Journal of Bone and Mineral Research (1) shows both elderly men and women who consumed the most animal protein had the lowest rate of bone loss while those who consumed the least amount of animal protein had the highest rate of bone loss. A study by the American Journal of Clinical Nutrition (2) has shown that postmenopausal women who consumed the highest amount of animal protein had the strongest bones and the lowest percentage of hip fractures. Diets lowest in meat required a longer time for healing of a bone fracture and the slowest recovery time for illnesses in general. Eating meat improves healing and health.

Increasing protein intake may have a favorable effect on change in bone mineral density (BMD) in elderly subjects supplemented with calcium citrate malate and vitamin D. (13)