Nutritional considerations that may interfere with calcium absorption & retention in the body, and enhance bone loss : Limit caffeine to ≤ 3 cups/day. Caffeine increases the loss of calcium through the urine. Foods high in fibre, such as raw grains & wheat bran contain phylates that bind with calcium. Consider taking a calcium food source or supplement on its own or with light meals, snacks or at bedtime. Foods such as rhubard, spinach or strawberries contain oxalic acid that can bind with calcium. Limit dietary sodium intake to < 2100 mg /day (1 teaspoon of salt =2325 mg). Keep your intake of salty foods to a minimum. Limit soda drinks to occasional treats.