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Calcium et santé osseuse

Bone Proteins

Essential structural components that give bones their flexibility and resilience.

Definition

Proteins that constitute the structural framework of bones, providing elasticity and strength. They work synergistically with minerals like calcium to build and maintain bone architecture.

How it works

Bones are not just made of minerals; they contain a complex matrix of proteins that provide the structural scaffold. The main protein in bone is collagen, which acts like reinforcing steel in concrete, giving bones their flexibility and ability to resist fractures. Without adequate protein intake, bones become brittle and prone to breaking even with sufficient calcium. Amino acids from dietary proteins are required to continuously repair and remodel bone tissue. Young adults and older people particularly benefit from adequate protein intake for bone health.

Role

Provides the structural matrix that minerals bind to, enabling bone formation, growth, and repair while maintaining bone elasticity.

Examples

  • Collagen
  • Osteocalcin
  • Osteopontin
  • Matrix proteins

Recommendations

Aim for 1.0-1.2 grams of protein per kilogram of body weight daily, combining animal sources (meat, fish, dairy) with plant-based options (legumes, nuts, seeds). Include protein at every meal to support continuous bone remodeling.

Key takeaway

Protein is as critical as calcium for building strong, resilient bones that resist fractures.

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