Coffee reduces the effects of these six dietary supplements

Coffee reduces effectiveness of these six dietary supplements The combination of coffee with certain dietary supplements is not harmful, but can significantly reduce their absorption, meaning the body will not fully utilize their potential. Good news is that morning coffee does not have to be abandoned, but rather its timing should be adjusted so that the body can more effectively absorb the supplements, according to Health.com. Iron Coffee contains polyphenols, plant-based compounds known for their antioxidant properties. However, the issue arises because these compounds bind to iron and thus limit its absorption in the body. Some studies show that drinking coffee with an iron-rich meal can reduce iron absorption by approximately 35 percent. A 2023 study focused on the absorption of iron supplements alongside coffee revealed that absorption decreases by 54 to 66 percent. This means taking iron with coffee will not increase the level of this mineral in the body as intended. Calcium For maximum effectiveness of calcium supplements, it's crucial not to take them simultaneously with coffee. Caffeine interferes with the body’s ability to absorb calcium, whether from food or supplements. Coffee further negatively affects vitamin D, which is essential for calcium absorption. Coffee is also a diuretic, meaning it promotes urine production. Since the body produces urine through filtration of blood, the diuretic effect of coffee, according to some research, encourages the excretion of calcium from the body. Vitamin D Research suggests that individuals aiming to boost their vitamin D levels should avoid taking supplements with coffee. There are reports indicating that caffeine might reduce the effectiveness of vitamin D by interfering with its receptors in the body. Other studies have found that people consuming higher amounts of caffeine, such as those who drink a lot of coffee, often have lower vitamin D levels. It is important to note that these studies do not establish a direct cause-and-effect relationship, but they highlight a correlation. Vitamin B Complex Taking vitamins from the B complex group with coffee may interfere with their absorption or accelerate their elimination from the body, resulting in a loss of part of their beneficial effects. These include thiamin, folic acid, folinic acid, biotin, niacin, and riboflavin. Some studies indicate that coffee consumption may decrease the levels of these vitamins in the blood. For example, a 2016 study links higher coffee intake with lower levels of thiamin. A 2018 study points to caffeine potentially interfering with the metabolism of folate and thereby reducing its concentration in the blood. As water-soluble vitamins, B complex nutrients are excreted via urine, and coffee, being a diuretic, speeds up this process. Nevertheless, results from these studies are not conclusive. Another study notes that moderate coffee consumption, such as one to two cups per day, is not associated with significant changes in levels of vitamin B12 or folinic acid. Magnesium Coffee similarly affects magnesium, another water-soluble mineral. Because coffee increases urine volume, the body filters and expels magnesium more quickly. This means that taking magnesium supplements with coffee reduces their effectiveness. If you take supplements due to a deficiency in magnesium, you may still experience symptoms such as muscle cramps or fatigue. Zinc Zinc is also not recommended to be taken with coffee. Consumption of coffee may reduce bioavailability of zinc, meaning the amount of the mineral that reaches the bloodstream and becomes active in the body. One possible reason could be the impact of coffee on vitamin D, which helps the body absorb zinc. When is the best time to drink coffee? To maximize the benefits of dietary supplements and avoid interactions that diminish their effectiveness, it is key to time coffee consumption appropriately. According to research, it is safe to drink coffee one to two hours before taking supplements or consuming nutrient-rich meals.