It’s Official. Vitamins Don’t Do Much for Health

This transcript has been edited for clarity. Welcome to Impact Factor, your weekly dose of commentary on a new medical study. I’m Dr F. Perry Wilson of the Yale School of Medicine. Vitamins. If you are like the majority of American adults, you took a vitamin or supplement recently. Over-the-counter sales of these products in … Read more

Americans Are Wasting Billions Every Year on Useless Supplements, Scientists Warn

For years scientists have been saying there’s not much evidence to recommend vitamin supplements for most people, with a growing body of research suggesting most of the pills are useless and don’t necessarily make us any healthier.   Yet the message has not been getting through. Over half of US adults regularly take dietary supplements, … Read more

Scientists Reveal Another Consequence of Poor Sleep: More Belly Fat

If you need another reason to make sure you’re getting a decent amount of shut-eye each night, a new study found insufficient sleep is linked with an increase in fat accumulation – especially unhealthy abdominal fat in the belly. The randomized experiment involved 12 healthy, non-obese volunteers over a period of 21 days, finding that … Read more

Common Over-The-Counter Painkillers Can Be An Unexpected Source Of Too Much Sodium

Dissolvable painkillers might bring rapid relief, but researchers are warning many of them also come with a hidden and hearty dose of salt. For each half a gram of paracetamol, or acetaminophen, that comes in a dissolvable tablet, you may also swallow around 0.4 grams of sodium, one of the main components of salt. Sodium … Read more

Modified Snacks Reduce LDL Cholesterol

A new, randomized crossover study shows that individuals who ate specifically formulated snacks high in certain ingredients including fiber, phytosterols, and antioxidants reduced their LDL cholesterol, even in the absence of other dietary or lifestyle changes. Investigators randomized 54 adults to receive either the specially formulated snacks made by Step One Foods or control snacks … Read more

A Hidden Pattern in Your Retina May Reveal if You’re at Risk of a Future Heart Attack

Early, accurate, and simple diagnosis is important in just about every health condition you could name, and that includes heart disease. New research now suggests straightforward eye scans could identify patients with an increased risk of cardiovascular problems later on in life. If this method of diagnosis can be developed, it would be a big … Read more

Something in your eyes can reveal if you are at risk of premature death, studies show

A quick and painless scan of the human eyeball could one day help doctors identify ‘rapid elderly’ who are at greater risk of early mortality. Getting older obviously has an impact on everyone’s body, but just because two people have the same number of years on their backs does not mean they are physically declining … Read more