In fact, some supplements - such as calcium and vitamin D - were actually associated with a higher risk of cancer. At a time when other celebrities, social media influencers, and wellness web sites promote concoctions of nutritional vitamins, the brand new findings are part of a rising physique of proof that dietary supplements do not assist most individuals.
The new study, however, says there's not much evidence that supplements of any sort can prolong your life, despite their widespread use. These deaths included 945 deaths from cardiovascular disease and 805 deaths from cancer.
Roughly 34 per cent of British people take health supplements daily, while the figure in the U.S. is closer to the 50 per cent mark.
First of all, the participants were asked to fill a 24-hour food questionnaire twice. Excess intake of calcium was associated with higher risk of death from cancer, they said.
"It is important to understand the role that the nutrient and its source might play in health outcomes, particularly if the effect might not be beneficial", Zhang said.
In addition, excess calcium intake was linked to an increased risk of cancer death, which the researchers found was associated with supplemental doses of calcium exceeding 1,000 mg/day.
Similarly, calcium intake from supplements indicated an increased risk of death but when taken from food, there was no association with death.
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Professor Hugh Montgomery, of UCL Institute Human Health and Performance, said: 'The growing message is routine vitamin supplementation offers little if any benefit to health and may cause harm.
The scientists behind the work discovered that adequate intake of vitamin A, vitamin K, magnesium, zinc and copper were associated with a lower risk of premature death, but only when these nutrients came from food. Though some nutrients have been linked to lower mortality risk in general, you'll need to get those nutrients from actual food, not pills and powders, to reap the benefits. They can't prove if the nutrients from food can lengthen your life, but people who adopt healthy diets live longer.
'Our results support the idea that, while supplement use contributes to an increased level of total nutrient intake, there are beneficial associations with nutrients from foods that aren't seen with supplements.
'Meanwhile, it is clear diets high in these components are healthy.
"It's more likely to be someone looking for more energy and vitality or trying to treat symptoms such as hair loss or leg cramps", she said. Nutrients found in foods "can protect us from diseases, so focus on your diet rather than buying supplements".
Consumed nutrients from vitamins and supplements may not be as effective in improving one's health compared with eating the right food for the needed nutrients, according to the study.