Lose Weight by Eating More Nuts
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by Samantha Becker
September 2008


Everybody loves nuts.  That can of smoked flavor roasted almonds, salted peanuts at the ball game, or how about those addicting macadamia nuts?  We roast them, salt them, spread them on bread, cover them with chocolate, crush them and put them into candy bars.  But besides tasting so good, nuts are good for you too.  They are a great source of essential fatty acids, fiber, vitamin E, protein, and minerals.  Important compounds that are found in plants are also found in nuts and are called phytochemicals.  Phytochemicals have even greater anticancer effects than antioxidants such as the vitamins C and E.  Nuts have also been shown to lower bad cholesterol (LDL) and reduce the risk of heart disease.

Nuts are also high fat and high calorie.  However, despite this fact, there is increasing evidence that nuts can help you lose weight.  A review of published studies on nut consumption and body weight was published in the Journal of Nutrition in September 2008.  Population and controlled clinical studies show that nut consumption is not associated with higher body weight.  In fact, people who consume nuts regularly tend to have a lower BMI (body mass index) than those who don’t eat nuts.  Several clinical studies were done in which a group of healthy men and women were given a large amount of nuts to eat daily.  Members of the trials were supposed to gain weight, however, weight gain was much smaller than anticipated for the amount of calories consumed.  Other studies that focused on weight loss instead of expected weight gain resulted in faster weight loss for diets that included nuts.

So how can a high fat and high calorie food help you to lose weight?  This is not yet fully understood, however, there are three findings that can help uncover the mystery of nut consumption and weight loss.  The first is satiety.  Satiety properties were tested for almonds, peanuts, and chestnuts and it was reported on questionnaires that a huge reduction in hunger occurred. As a result, the high calorie intake is compensated for by smaller subsequent meals.  Second, the body is limited in how much calories from nuts it can absorb.  This applies to whole nuts and not nut butters, such as peanut or almond butter.  Third, nuts are a high thermogenic food.  This means consuming them raises the body’s metabolism, even at rest.  So not only do nuts offer a wide range of health benefits, they can help you lose weight too.




References:
Murray, Michael, N.D., et. al., “The Encyclopedia of Healing Foods”, Atria Books, New York, 2005.
Mattes, Richard D., et. al., “Impact of Peanuts and Tree Nuts on Body Weight and Healthy Weight Loss in Adults”, Journal of Nutrition, 138, 1741S, 2008.



Calories and Nutritional Values for Some Common Nuts
(per 3 ½ ounces)

Nut
 Calories  Fat (g)
Protein (g)  Fiber (g)  Vitamin E (mg) 
 Almond 578  50.64   
21.26  11.8  26.179 
 Brazil  656  66.22 14.34
5.4  7.6 
 Cashew  656  66.22 14.34  5.4  7.6 
 Macadamia  718  76.08 7.79  0.569 
 Peanut  585  49.66 23.68  7.8 
 Pecan  691  71.97 9.17  9.6  4.05 
 Pistachio  571  45.97 21.35  10.3  4.263 
 Walnut  618  59 24.06  6.8  4.691 

*From “The Encyclopedia of Healing Foods” (see references).




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