American doctors have found that fish oil and vitamin D in the most common dietary supplements do not reduce the risk of cardiovascular disease and cancer.
In higher doses, as prescribed by a physician, fish oil helps people with high triglyceride levels and reduces the risk of death from cardiovascular disease.
Professionals welcomed the results of the two studies presented at a conference of the American Association of Cardiologists. 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. Still, they have used vitamin D, but no great research has been done about their benefits.
"Supporters of vitamin D claim it is useful for everything, but in this study, vitamin D has proved to be a big deal" "said James Stein, a cardiologist at the University of Wisconsin-Madison, who was not involved in the research.
Fish oil, including omega-3 fatty acids, is found in salmon, tuna and other fish. It lowers triglycerides and reduces inflammation. There are different types of fish oil with different dominant fatty acids.
With a study, doctors from Brigham and Women's Hospital in Boston traced the effect of a 4 gram fish oil supplement that is only available on prescription. The study included 8000 patients with high triglycerides and a greater risk of cardiovascular problems that already take statins. After five years, 17 percent of the drinkers survived an incident – a heart attack, a stroke, obstruction of arteries requiring medical intervention, in 22 percent of people on placebo.
This means that the high fat fat oil supplement reduces the risk of cardiovascular events by 25 percent, according to BTA. However, it has side effects such as arrhythmias.
The second study, conducted in the same hospital with a lower daily dose of 1 gram of fish oil, involving 26,000 healthy volunteers, showed no difference between addiccin and placebo group, although the first infarcts were smaller.
The other team also tested the effect of white additives. D. Participants in the study drew 2000 international units of white. D-3 or placebo for five years. The results show that the sun's vitamin does not affect the incidence of heart attacks, stroke or cancer, although the latter has decreased slightly.