Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Protein plays a well-established role in supporting the skeletal system, specifically bone health. Scientific research demonstrates that adequate protein intake is essential for bone structure, strength, and maintenance. Protein provides the amino acids necessary for synthesizing collagen, a major component of bone matrix, and supports the production of growth factors and hormones that regulate bone remodeling. Multiple observational and interventional studies have shown that higher dietary protein intake is associated with greater bone mineral density and reduced risk of fractures, especially in older adults. However, extremely high protein intake, particularly from animal sources, has historically been debated due to concerns about increased calcium excretion. More recent evidence suggests that, within typical dietary ranges, protein does not adversely affect calcium balance and may in fact improve calcium absorption and bone health. Clinical guidelines generally recommend adequate protein intake as a key component of osteoporosis prevention and skeletal health maintenance, alongside calcium and vitamin D. Therefore, the use of protein to support the skeletal system is scientifically validated, and its benefit is supported by moderate to strong evidence.

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