American doctors have found that fish oil and vitamin D in their most common dietary supplements do not reduce cardiovascular disease and cancer risk, reports the world's media. For larger doses, which doctors prescribe, fish oil helps people with high triglycerides and reduce the risk of death from cardiovascular disease.
Professionals appreciated the results of both studies presented at the American Cardiology Association conference. They said that these are guidelines for a new treatment option for hundreds of thousands of patients.
About 10 percent of Americans drink fish oil supplements. However, they use vitamin D, although there are so far few studies on the benefits of vitamin D.
"Vitamin D attachment claims it's beneficial for everything, but in this particular study, vitamin D has not proven anything," said Dr. W. Jackson, a cardiologist at the University of Wisconsin-Madison who was not involved in the study.
Fish oil, also known as omega-3 fatty acids, is found in drops, tunicans and other fish. It lowers triglycerides and reduces inflammation. There are different types of fish oil with different dominant fatty acids.
In one study, physicians from Brigham and Womens Hospital in Boston traced 4 grams of fish oil additive effect, available only on prescription. The study involved 8,000 high-triglyceride patients and a higher risk of cardiovascular problems that had already been used in statins. After five years, 17 percent of the addicts survived the accident – a heart attack, a stroke, an artery occlusion requiring medical intervention, 22 percent in placebo-treated patients. This means that high-fat fish feed reduces cardiovascular risk by 25 percent, Zdrave points out. However, it can have side effects, such as arrhythmia.
A second study in one and the same hospital with a lower daily dose of 1 gram of fish oil, in which 26,000 healthy volunteers participated, did not show significant differences between the placebo group and subjects, although the first infarctions were less.
The other team also examines the effects of vitamin D supplements. The study participants received 2000 international vitamin units. D3 or placebo for five years respectively. The results indicate that the "sun" vitamin does not affect the incidence of heart attacks, strokes or cancer, although the latter have slightly decreased.