inform February 2010, Vol. 21 (2) 87
(The fatty acid percentages were based on In the study, researchers led by Nita aging than reducing calories, a recent study
dry weight of roe.) G. Forouhi of the Institute of Metabolic suggests.
“Results obtained in this work suggest Science, Cambridge, UK, examined data The research may help explain why
that further investigation is desirable in this on almost 90,000 men and women from six caloric restriction—reducing food intake
field: e.g., the correlation between dietary countries participating in the European Pro- while maintaining sufficient quantities of
fatty acid and fatty acid composition in roe spective Investigation into Cancer and Nutri- important nutrients—appears to have health
from farmed fishes, the determination of tion Study. Participants were followed for up benefits. In many organisms, such as the fruit
the lipid classes in the better EPA and DHA to 10 years. fly (Drosophila), mice, rats, and the rhesus
sources . . . and their positional analysis to Average fat intake ranged from 31.5% monkey, these benefits include living longer.
know how these PUFA are distributed into to 36.5% of total calories. On average, Evidence suggests that dietary restriction
triacylglycerols and other lipid classes,” the people gained about a quarter of a pound can have health benefits for humans, too,
authors write. every year. But analyses that accounted
though it is unclear whether it can increase
for several factors found no relationship
between how much weight people gained
CLA and chick and how much fat they ate, or their intake
In their studies of fruit flies, researchers
led by Richard C. Grandison of University
of polyunsaturated fats vs. saturated fats.
The researchers noted that the findings College in London found that levels of the
should not be seen as showing that people amino acid methionine were crucial to max-
Studies have shown that gi