Some evidence suggests that excessive coffee consumption may interfere with the body's ability to absorb vitamin D. However, the research is inconclusive, and the impact of coffee consumption on vitamin D levels may vary depending on age, gender, and overall diet.
Some studies have suggested drinking more than three cups of coffee daily may lower vitamin D levels. This is because coffee contains polyphenols, which can bind to vitamin D and prevent it from being absorbed by the body. However, other studies have found no significant impact of coffee consumption on vitamin D levels.
Generally, moderate coffee consumption is unlikely to impact vitamin D levels significantly. However, if you are concerned about your vitamin D levels, adding supplements high in vitamin D to your coffee is essential.