Background P-trend = 0.02). Regarding major sources of calcium, a significant inverse association was only observed for dairy-based calcium intake, with an OR of 0.45 (95%CI: 0.23, 0.89; P-trend = 0.02). Consumption of dairy products, particularly milk (OR: 0.45 from a comparison of ≥4 servings per week with never/rarely; 95%CI: 0.22, 0.90; P-trend = 0.05) and yogurt (OR: 0.38 from a comparison of ≥2 servings per week with never/rarely; 95%CI: 0.19, 0.78; P-trend = 0.01), was also associated with lower odds of AMD. No significant associations were found for milk powder or dietary intake of calcium from vegetables or legumes. Conclusions: Higher intake of calcium and its major food sources, such as milk and yogurt, was associated with a significantly decreased likelihood of AMD in a Chinese population with relatively low dietary calcium intake. These findings align with current public health recommendations for maintaining adequate calcium status and emphasize that the health implications of calcium may depend on its dietary sources.
Jiang et al. (Thu,) studied this question.