Experts claim false interpretation of scientific studies has led to millions being 'over-medicated'.
Doctors claim it is time to 'bust the myth' of the role of saturated fat in heart disease.
Some nations are adopting dietary guidelines to encourage high-fat foods.
How eating too many sweets could make you FORGETFUL: Having high blood sugar levels can cause memory problems
Bad news if you've got a sweet tooth - eating too many sweets could make you forgetful.
Researchers have found that maintaining low sugar levels in the blood is good for the brain.
The study, published in the journal Neurology, showed people with too much sugar in their blood were more likely to have memory problems.
Researchers looked at 141 people with an average age of 63 who did not have diabetes or pre-diabetes.
Those with less sugar in their blood were more likely to score well on memory tests.
The researchers found that people with high levels of sugar in their blood were less able to recall a list of 15 words 30 minutes after hearing them.
Women who eat a lot of red meat and carbohydrates - such as chips, pasta and bread - are 29 to 41% more likely to be diagnosed with depression
But those who consume olive oil, coffee, wine and fish are less likely to become depressed, say Harvard researchers
The researchers were unable to say whether carbs caused depression - or if people simply turned to them when they felt low.
Previous research by Dr Judith Wurtman, a former scientist at the Massachusetts Institute of Technology, and her husband, Dr Richard Wurtman, has suggested that people crave carbohydrates when the levels of the feel-good hormone, serotonin, fall in their brains - such as during that mid afternoon slump.
'We discovered years and years ago that many people experience the "universal carbohydrate craving time" between 3:30 p.m. and 5 p.m. every day,' WedMD reports.
A new study found many yellow and orange-colored fruit and vegetables improved men’s fertility, but the carrot produced the best all-round results.Posted by Jill Fallon at October 30, 2013 3:50 PM | Permalink
The sperm-boosting qualities come from chemicals called carotenoids, which give such foods their familiar color. These include beta-carotene, which the body can make into the antioxidant vitamin A. Antioxidants help to neutralize free radicals, destructive groups of atoms made as a by-product of metabolism that can damage cell membranes and DNA.
An international study led by Harvard University in the US found other similar hued foods such as sweet potato and melon can also enhance the quantity and quality of sperm by up to 10 per cent. It comes amid concern that both the quantity and quality of male sperm appears to be declining in western countries, with some studies showing average sperm counts have fallen by over half.
Estimates suggest around 30 per cent of men in couples seeking IVF treatment are subfertile, and two per cent are ‘totally’ infertile.