Eat boatloads of onions.
The high sulfur content of onions has a direct effect on the formation of connective tissue such as tendon and cartilage. Sulfur is present in all long chain polysaccharides called glycosaminoglycans (GAGS), with the exception of hyaluronic acid. GAGs make up cartilage, tendons, and synovial fluid. Tendons are especially important to your bone health since they attach muscles to bones, so the muscles’ contractions can be transferred across the joints and pull on the bones.
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