[Osteoporosis diet]

Area of Science:

• Nutritional Science
• Bone Metabolism
• Osteoporosis Research

Background:

• Bone health relies on a diverse nutrient intake, with deficiencies in protein, calcium, phosphorus, vitamins D, C, K, zinc, manganese, and copper linked to abnormalities.
• Calcium and vitamin D are nutrients frequently deficient in industrialized populations.
• Osteoporosis is a significant concern, prompting investigation into nutritional factors.

Purpose of the Study:

• To review the literature on nutritional aspects of osteoporosis.
• To identify factors influencing calcium requirements and bone health.
• To explore potential therapeutic nutritional interventions for osteoporosis.

Main Methods:

• Literature review focusing on nutritional influences on calcium homeostasis.
• Analysis of dietary components affecting calcium absorption and excretion.
• Examination of in-vitro and animal studies on vegetable extracts and bone resorption.

Main Results:

• Dietary factors like sodium, protein, caffeine, fiber, oxalate, phytate, and diet's acid/alkaline ash character influence calcium requirements.
• Sodium, protein, and acid/alkaline balance significantly increase urinary calcium excretion.
• Alkali buffers from fruits and vegetables can reverse urinary calcium loss.
• A calcium-to-protein ratio of 20:1 (mg calcium/g protein) is recommended for bone health.
• Certain vegetable extracts, particularly from the onion family, show dose-dependent inhibition of bone resorption in preliminary studies.

Conclusions:

• Dietary management, focusing on calcium balance and specific nutrient interactions, is vital for bone health and osteoporosis prevention.
• While promising, further research is needed to confirm the therapeutic feasibility of nutrition-based approaches, including vegetable extracts, for osteoporosis.
• Maintaining adequate calcium intake alongside a balanced diet, considering factors like protein and acid-base balance, is key for calcium homeostasis.