Reassessing Your Morning Routine

Starting your day with a cup of coffee can feel incredibly productive. However, it comes with a range of health benefits, like boosting brain function, reducing inflammation, enhancing heart health, and aiding metabolism.

On the flip side, if you enjoy a morning beer, it might interfere with how your body absorbs certain supplements. This could lead to less effectiveness or even irritating side effects. With around 66% of U.S. adults sipping coffee daily and about 74% taking dietary supplements, it’s easy to see where potential issues could arise.

Here are five supplements to think about carefully before mixing them with coffee.

Iron

Dr. Karan Rajan, who works in gut health technology, notes that coffee has a notable impact on iron absorption. Coffee’s rich polyphenol content, while beneficial as antioxidants, can actually bind to non-heme iron in your gut, making it tricky for your body to absorb this mineral.

This concern is particularly relevant for those who are iron deficient, menstruating, pregnant, or following a plant-based diet. Rajan advises that if you’re taking iron supplements, it’s best to avoid coffee for about 1-2 hours. Consuming vitamin C alongside can help mitigate some of the absorption issues caused by iron.

Zinc

When it comes to zinc, Rajan mentions that coffee might slightly reduce its absorption due to the binding nature of polyphenols. The impact can vary, though, and is generally not a significant issue for those who are getting adequate zinc in their diets.

For those that are deficient or taking zinc for immune health, it would be wise to have zinc separately from coffee. Good sources of zinc include oysters, meats, nuts, and whole grains.

Calcium

Rajan explains that coffee does mildly inhibit calcium absorption primarily because caffeine tends to increase urinary calcium loss. Surprisingly, for every cup of coffee, you might lose around 5 milligrams of calcium.

While this is usually insignificant for most people, those relying on supplements for bone health should steer clear of using coffee as a calcium source, although it’s not a huge worry for the average coffee drinker.

Magnesium

In terms of magnesium, coffee doesn’t have a strong inhibitory effect. However, it can lead to increased urine output, which might result in some magnesium loss, especially if you’re a heavy coffee drinker.

Rajan suggests that magnesium is generally better taken later in the day. But there’s no strict prohibition against having it with coffee. Mixing forms of magnesium, like magnesium citrate with coffee, can lead to stomach issues due to their potential laxative effects.

Vitamin B Group

Regarding B vitamins, Rajan indicates that most aren’t significantly inhibited by coffee. However, some, especially vitamin B1, could increase in urinary excretion due to caffeine.

Since B vitamins are water-soluble, excess amounts flush out in urine. Vitamin B1 is vital for converting carbohydrates into energy and facilitating healthy muscle, nerve, and heart functions. Rajan reassures that you can generally take B vitamins with coffee without too much concern unless you’re consuming them in very small quantities or gulping down lots of caffeine.