Walnuts to Lower Cholesterol
March 8th, 2010 by admin
Despite GP’s being quick to write a prescription for statins to reduce cholesterol, every single one would admit that a change in the diet would normally suffice if adhered to. But popping a pill is easier so doctors write scripts because our culture demands it and patients expect it.
I’m excited to report that cholesterol can be lowered not only by ingesting drugs but also by ingesting Walnuts! A meta-analysis of thirteen studies published in May 2009 in the American Journal of Clinical Nutrition, found that when compared to control diets, diets supplemented with walnuts resulted in a significantly greater decrease in Total Cholesterol and LDL Cholesterol levels in the blood.
Interesting when you reasearch around the topic, outside of the consumption of Walnuts as above, while there appears to be much literature supporting the role of Omega-3 in the reduction of triglycerides, and in the prevention of CHD most studies do not suggest it has a direct beneficial effect on Total Cholesterol, LDL or HDL. In fact a substantial meta-analysis of 23 studies, researchers found heterogeneous results. Definitely not enough in it to excite a person to cook themselves up a plate of salmon that evening. Now don’t get me wrong, Omega-3 is just fab for the prevention of many other conditions including depression, type 2 diabetes, Alzheimer’s disease and high blood pressure to name just a few, but its direct effect on Total Cholesterol, HDL and LDL remains to be scientifically established.
Probably because a whole food is so much more than the sum of its individual parts. Our culture, as we go through an era of nutritionism, gets horribly tied up in breaking our food down to its nutrients, forgetting how responsible the interactions between nutrients are for our overall health.
Walnuts have a unique nutritional profile and are the only nut that is high in ALA, a form of Omega-3 but they also contain manganese, copper and tryptophan in good quantities, all necessary nutrients for human physiology. I’d like to suggest that there is more to food and it’s contribution to human health than scientist are capable of exploring, at least in 2010 anyway.
So in the meantime, go nuts. Just a handful a day should suffice.
Try to avoid roasting and storing as they may go rancid and produce free radicals.
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