We've known for a while that nuts are great for you, and not just because eating nuts in place of other snacks won't result in weight gain. There are many studies on the effects of eating many different nuts on cholesterol levels. Recently a team of researchers in Barcelona, Spain and in Loma Linda, California pooled the results of 25 different studies on nuts and cholesterol to see if the type of nut made a difference in the cholesterol-lowering effects of eating nuts.
After analyzing the correlation between the amount of nuts each participant ate on a daily basis over the course of each study and their cholesterol scores, the researchers found that those diets that included nuts helped reduce total cholesterol, LDL cholesterol (bad cholesterol), the ratio of LDL to HDL (good) cholesterol, and the ratio of total cholesterol to HDL cholesterol (all improved scores). The HDL results, however, were not affected, while eating nuts only helped reduce triglyceride scores in those who actually had high triglycerides.
Intrigued, the researchers decided to control for the type of nut and found that the cholesterol improvements were the same regardless of what type of nuts were eaten. Even further, they discovered that those with a lower Body Mass Index tended to improve their cholesterol scores more than those with higher BMI, and that scores also improved more for those who ate a more Western-style diet as opposed to those who followed a more Mediterranean or simply low fat diet.
The beauty of these studies that pool results is that several small, not-very-strong studies can be grouped together to yield stronger results. In this case, the take-home message is that eating nuts is good for you. It doesn't appear to matter what kind of nut it is, but adding nuts to your diet, whether they're in your food or if you eat them by themselves as a snack, can help improve your cholesterol scores, won't make you gain weight, and are very satisfying. Eat nuts!
Eat well, eat healthy, enjoy life!
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