A survey by the Ministry for Agriculture Fisheries and Food in 1998 found relatively low levels of mercury in fish-oil supplements.
European legislation has been introduced to control the levels of dioxins in foods, animal feeds including fish feeds, and fish-oil supplements.
However, in the 342 patients with a history of MI, the rate of the composite end point was 35% with placebo and 28% in the fish-oil group--not a statistically significant difference, but encouraging, Dr.
During 2 years of follow-up, 65% of patients in the fish-oil group experienced one or more appropriate ICD firings to terminate a life-threatening ventricular arrhythmia, a rate not significantly different from the 59% figure among controls (JAMA 2005;293:2884-91).
Pregnancies in the fish-oil
group lasted an average of four days longer than those in the olive-oil group, the researchers found.
As consumers rush to buy fish-oil
capsules as a protection against coronary artery disease, scientists are mulling over equivocal results presented last week at the American Heart Association meeting in Washington, D.C.
Mice on the fish-oil
and calorie-restricted diets not only lived twice as long as normal, but produced half the normal levels of harmful autoantibodies and showed lower-than-normal inflammation.
A similar cholesterol increase occurred right away in those who started on regular eggs, but reversed when this group switched to fish-oil
"We need to find out what these fish-oils
do to the body and we are conducting this research for a very good reason.