The government is now recommending that we all take a daily supplement throughout the winter.
My feeling is, If people are worried about their vitamins, they can take a daily supplement.
I do take a daily supplement of vitamin D, based on considerable evidence of its multiple health benefits, especially for older people.
So in early March, three pounds lighter and taking a daily supplement of plant stanols, which are supposed to lower cholesterol, I had a second test.
To minimize the risk of any long-term toxicity, these experts recommend that adults take a daily supplement of 1,000 to 2,000 units.
Half were given a daily supplement to their diet containing vitamins, minerals and fatty acids, and the other half a placebo.
The powders are often distributed in refugee camps and disaster situations, but should be seen as a daily supplement that anyone can use, Mr. Bloem said.
However, skin becomes less efficient at producing vitamin D as you get older, and official advice states that everyone over the age of 65 should take a daily supplement of vitamin D (10 micrograms per day).
Dark skin is less efficient at churning out vitamin D, and because levels of the vitamin are typically low in most foodstuffs the researchers recommend fortified foods or a daily supplement.
Even if you're not deficient, the standard daily supplement dose (400iu for children, 1,000iu for adults) is unlikely to do you any harm – although it can be toxic in vast amounts.
Most often, a daily supplement of 2,000 micrograms is recommended for about a month, then lowered to 1,000 micrograms daily for another month, then lowered again to 1,000 micrograms weekly.
