Make Chiangmai Mail | your Homepage | Bookmark

Chiangmai 's First English Language Newspaper

Pattaya Blatt | Pattaya Mail | Pattaya Mail TV

 
 

Doctor's Consultation  by Dr. Iain Corness

 

Multi/mega vitamins - the elixir of youth?

I read an interesting article showing that the retirement age is creeping up. Even in Thailand’s civil service the retirement age looks like becoming 64. In Australia it is going to be 67. The world is becoming an old age home!
So we are all living longer, what can we do to get our arthritic hands on the elixir of youth? If you believe folklore, the answer to aging is multivitamins. Peddling mega-vitamins is a megabuck industry, credited with improving your health, your love life and fixing everything from falling chins to falling arches.
One trend is to take daily doses of antioxidants such as beta carotene, vitamin A and C or selenium to protect yourself against cancer, heart disease or signs of premature ageing. There is some scientific ‘proof’ that people who have a high level of antioxidants in their diet have a lower risk of heart disease and certain cancers. That is why the nutritionists say we should eat at least five portions of fruit and vegetables a day. However, other studies also suggest that taking those same antioxidants in pill form may not have the same effect and may even be harmful. Who do you believe!
“There’s still conflicting evidence about whether taking certain vitamin supplements can affect a person’s risk of cancer,” says Dr Alison Ross, at Cancer Research UK. “These products don’t seem to give the same benefits as vitamins that naturally occur in our food.”
The British Heart Foundation agrees. A spokesman saying, “Research does not support the claim that taking extra antioxidants in the form of supplements will benefit the heart.”
But surely, if this were the case, why do so many people pop the multivitamin pills? We know we need vitamins, and some of us may have poor diets. Replenishing the stores is then surely ‘good medicine’?
Let us listen to some experts in the field, and not the back of the cereal box. Catherine Collins, chief dietitian at St George’s Hospital in London says, “The whole idea that you must meet some vitamin and mineral target every day of your life is a marketing myth. You can eat lots of fruit and veg one day and not much the next but over a week you will still get the right amount of nutrients. There is very little scientific evidence that there is any benefit whatsoever in taking a daily multivitamin - even in old people. You cannot exist on a poor diet then shore yourself up with a multivitamin. The idea that taking high quantities of vitamins will give you a health boost - like putting premium petrol in your car - is complete nonsense.”
Dr Toni Steer, nutritionist with the British Medical Research Council’s Human Nutrition Research in Cambridge, states supplements cannot compete with real food because when we eat fruits and vegetables the vitamins and nutrients interact with other chemicals to produce positive effects on the body. “If these same vitamins are pulled out and isolated in pill form, there is no guarantee at all that they will have the same effect.”
Another nail in the multivitamin coffin came from the US journal of the National Cancer Institute which found that men with prostate cancer who took more than seven multivitamins a week were 30 percent more likely to get an advanced and fatal form of the disease. This came after a large, though hotly contested, review published in the journal of the American Medical Association which found that people who took antioxidant vitamin tablets (particularly vitamins A and E, and beta-carotene) were more likely to die earlier than those who did not. Oops! That isn’t something you will read on the back of the multivitamin bottle.
Let’s look at the old Vitamin C to ward off the common cold, as proposed many years ago by Linus Pauling. Common claim: one-gram doses will ward off or even cure the common cold. Reality check: the human body can absorb only 500 milligrams of vitamin C and will excrete the excess. Vitamin C reduces the average length of a common cold from five days to four and a half - if you are lucky. Finally, do I take multivitamins? No.


HEADLINES [click on headline to view story]

Multi/mega vitamins - the elixir of youth?