Caffeine has a mild diuretic effect, which leads to an increase in urination. As a result, water-soluble vitamins, such as B-vitamins and vitamin C can be depleted due to fluid loss. Research also demonstrated that the higher the level of caffeine, the more it interfered with vitamin D absorption.
Try to avoid taking your vitamins with coffee or tea
The tannins and caffeine can interfere with the absorption of many vitamins and minerals, especially iron. Caffeine also increases urination, which can decrease the concentration of water-soluble vitamins (B-complex and C).
However, did you know that caffeine interferes with the absorption of vitamin C, meaning that you might not be getting the full benefits of your healthy diet if you regularly drink coffee, tea or other caffeinated beverages alongside meals?
When to Sip. Rather than having breakfast, a cup of coffee and your multivitamin all at once, set your supplement aside for later. Enjoy your brew and meal first, then take your multivitamin about 10 or 15 minutes later, suggests Dr. Mark Moyad of the University of Michigan Medical Center.
Research also demonstrated that the higher the level of caffeine, the more it interfered with vitamin D absorption. The study suggested that caffeine did this by reducing the expression of vitamin D receptors on osteoblasts in the body – the cells responsible for producing bone.
Caffeine can interfere with the absorption of certain minerals, including magnesium, calcium, and iron, but the loss is minimal.
Avoid taking omega-3 fish oil with coffee or tea
When omega-3 is moved more quickly through the digestive system, there will be less time for you to absorb all those lovely essential fatty acids.
Any beverage or food containing caffeine such as coffee, tea, chocolate and some sodas can inhibit the absorption of vitamins and minerals and increase their excretion from the body.
No interactions were found between caffeine and Fish Oil.
Antibiotics: Taking magnesium supplements may reduce the absorption of quinolone antibiotics, tetracycline antibiotics, and nitrofurantoin (Macrodandin). Magnesium should be taken 1 hour before or 2 hours after taking these medications. Quinolone and tetracycline antibiotics include: Ciprofloxacin (Cipro)
Magnesium and calcium/multivitamin
But if you do take magnesium, Erin Stokes, ND, recommends not taking it at the same time as your multivitamin, as it may interfere with the absorption of smaller minerals found in the multivitamin, like iron and zinc.
Coffee strips your body of key vitamins.
Maybe your thinking, “vitamins, schmitamins.” But here's the deal, too much coffee depletes your supply of B vitamins, which is your natural source of energy. Caffeine also causes the body to dump other key nutrients like calcium, magnesium, potassium and iron.
Phenobarbital, phenytoin, and other anticonvulsant medications -- These medications may accelerate the body's use of vitamin D. Mineral oil -- Mineral oil also interferes with absorption. In addition, Vitamin D may enhance the effects of doxorubicin , a medicine used to treat a variety of cancers.
[1] People who regularly take medications that suppress stomach acid for conditions like gastroesophageal reflux disease (GERD) or peptic ulcer disease—such as proton-pump inhibitors, H2 blockers, or other antacids—may have difficulty absorbing vitamin B12 from food.
New research from the University of Erlangen-Nuremberg suggests that taking zinc supplements alongside your tea or coffee or chocolate can help utilise their antioxidant benefits.
Don't use calcium, zinc, or magnesium supplements at the same time. Also, these three minerals are easier on your tummy when you take them with food, so if your doctor recommends them, have them at different meals or snacks.
Combining multiple supplements or taking higher-than-recommended doses can increase the risk that they can cause harm, said Kitchin. "You really can't get toxic doses of nutrients through food, but you can absolutely get toxic doses through supplements," Kitchin said.
Yes! You can and should take magnesium and vitamin D together. In fact, the bioavailability of vitamin D largely relies on magnesium. Also, many nutrients wouldn't work efficiently without magnesium, further highlighting the importance of this mineral!
Magnesium and zinc
All minerals and vitamins need the proper conditions for your body to absorb them properly. When taken together, magnesium and zinc have mutual benefits. Magnesium helps your body regulate its zinc levels, while zinc does the job of allowing it to absorb magnesium more effectively.
Therefore, magnesium supplements can be taken at any time of the day, as long as you're able to take them consistently. For some, taking supplements first thing in the morning may be easiest, while others may find that taking them with dinner or just before bed works well for them.
Their lab experiments have shown that the combined effect of cooking fish (sorry, sushi lovers) and tea or black coffee makes mercury far less likely to be taken up by the body. So a few sips of tea or coffee with your salmon or trout could lower the risk of mercury that you're consuming from causing you harm.
However, taking too much fish oil can lead to vitamin toxicities and an omega-3 fatty acid overdose and adversely affect your health.