The inhibitory effect of dietary calcium on iron bioavailability: a cause for concern?

Article Abstract:

The 1994 Consensus Development Panel on Optimal Calcium Intake has recommended an increase in the intake of calcium to prevent osteoporosis and other diseases. However, studies show that calcium affects the absorption of iron by the body. This inhibitory effect of calcium depends on the calcium source and the timing of the calcium and iron intake. It has been suggested that calcium be taken between meals preferably at night which will also prevent the resorption of bone during the night.

Analysis, Calcium, Dietary

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Dietary salt, urinary calcium, and kidney stone risk

Article Abstract:

A good technique of reducing the risk of forming calcium-containing kidney stones can be the lessening of dietary sodium chloride. Urinary calcium excretion increases about 1 mmol(40mg) for each 100 mmol(2300mg) increase is dietary sodium in normal adults, as revealed by a study of salt-loading and free-living populations. Renal calcium stone-formers with hypercalciuria seem to have more proportional increase in urinary calcium (about 2 mmol) per 100 mmol increase in intake of salt.

Causes of, Physiological aspects, Calcium in the body, Salt, Salt (Food), Kidney stones, Salt-free diet, Sodium restricted diet

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Excess retinol intake may explain the high incidence of osteoporosis in Northern Europe

Article Abstract:

This study attempts to explain why some countries whose population consume large amounts of calcium also have high rates/ of bone fractures. Research reveals that the higher incidence of osteoporosis in Norway and Sweden in postmenopausal women can be linked to the addition of retinol in fortified milk.

Europe, Statistical Data Included, Bones, Sweden, Risk factors, Norway, Bone density, Osteoporosis, Nutritional aspects, Vitamin A, Vitamin A in human nutrition, Milk consumption

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