research studies have observed that switching from the typical Western
diet to a diet lower in fat, and higher in carbohydrates mostly
in their refined, fiber-free or low-fiber form, raises serum triglycerides.
High triglyceride levels are being recognized as a risk factor for
In this study the impact on triglycerides of a low fat, high carbohydrate
diet rich in whole-grain raisin bread and sun-dried raisins was
Fifteen men and women with normal and high blood cholesterol and
triglycerides followed a typical Western diet for three weeks. After
this baseline period, they switched to a low fat, high carbohydrate
diet supplemented daily with significant amounts of whole-grain
raisin bread and sun-dried raisins for 13 weeks. Compared to the
baseline diet, the study diet was lower in calories and fat and
higher in carbohydrates and more than double in fiber.
Following the study diet triglycerides decreased by 19%, though
this was not statistically significant. Although the small number
of subjects may have prevented the results from reaching statistical
significance, the decreasing trend and the absence of an increase
in triglyceride suggest that the study diet had a beneficial effect
on triglyceride levels in the blood.
Carbohydrates rich in fiber and phytochemicals, such as sun-dried
raisins and whole-grain raisin bread, do not have a triglyceride-raising
effect as is often seen when foods high in refined sugar and white
flour are a major part of the diet.
GA and Bruce B. Regular consumption of high fiber carbohydrate
foods such as sun-dried raisins and whole grain breads does not
raise serum triglycerides. Presented at the Society for Experimental
Biology Meeting, San Francisco, CA, April 1998. FASEB J 12(5):A654,
1998 (Abstract 3803).