As everyone knows, the bones of osteoporosis patients are very prone to fractures because their skeletons lack lime. Lime is composed of calcium and carbonate. Milk and dairy products contain large amounts of calcium—therefore, people must drink a lot of milk and continuously consume cheese and other dairy products in order to avoid developing osteoporosis. This is the theory that people often hear. We can further develop this theory: if osteoporosis is caused by a lack of lime, and milk can help people supplement an adequate amount of lime. Then, by the same logic, bone marrow and arteriosclerosis, which also originate from lime, could become a reason for people to give up dairy products for dietary therapy. Whoever does not want to develop a hardening disease should prevent the disease and give up milk. This line of reasoning is just as logical as the theory that "milk prevents osteoporosis." If you have never heard of this second theory here, it might be because this theory would not bring any economic benefits to any industry.
If the theory that "milk prevents osteoporosis" is correct, then the bones of people who drink less milk would atrophy faster. But this is not the case. Mark Hegsted, a professor at Harvard Medical School, was surprised to find: "Groups that ingest smaller amounts of calcium from food can significantly and effectively prevent fractures of the femoral neck." He continued to write: "Fractures of the femoral neck often occur in people who consume large amounts of dairy products and take a lot of calcium supplements." This finding is also a wake-up call for the theory that "milk can slow bone atrophy."
We are very accustomed to viewing our bones as stable and permanent substances. People always feel that once bones are formed, even if they cannot be used permanently, they should at least be able to last until old age. This view is wrong. The human skeleton is actually in a constant state of breakdown and rebuilding. In this process, many kinds of hormones in the human body will play a role. When suffering from osteoporosis, the bone breakdown process in the human body is faster than the bone rebuilding process. The amount of calcium in the body (from the breakdown process) is sufficient, but it is no longer used to rebuild bones. This is either due to a lack of calcium carriers in the body, or because it is intercepted by other substances before bone reconstruction, or because the body's regulatory system always sets the process on bone breakdown. If so, even if the body's calcium supplement is normal, these minerals will still be excreted from the body. What use are they to the body?
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