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The health and wellbeing experts at Simply Supplements are revealing foods and lifestyle choices which could be stopping vitamins from working
A warning has been issued to millions of coffee drinkers who take vitamins. The health and wellbeing experts at Simply Supplements are revealing foods and lifestyle choices which could be stopping vitamins from working.
Samantha Greener, wellness expert at Simply Supplements said: “Now we are coming into winter and the temperatures have dropped, many will turn to supplements to get their daily requirement of essential vitamins D and C.
“Many people are under the impression taking their daily vitamins will fuel them with all of the nutrients they need, but the supplements could actually be interfering with other things in their diet.”
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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. 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..
One study warned: “A cup of coffee reduced iron absorption from a hamburger meal by 39% as compared to a 64% decrease with tea, which is known to be a potent inhibitor of iron absorption.
“When a cup of drip coffee or instant coffee was ingested with a meal composed of semipurified ingredients, absorption was reduced from 5.88% to 1.64 and 0.97%, respectively, and when the strength of the instant coffee was doubled, percentage iron absorption fell to 0.53%.”
It concludes: “These studies demonstrate that coffee inhibits iron absorption in a concentration-dependent fashion.”
Caffeine can also interfere with the absorption of calcium. A study published in the journal “Osteoporosis International” showed that just a cup of coffee can slightly reduce calcium absorption in the body and increase its loss in urine due to its diuretic effect.
