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Why nuts do not induce expected weight gain? They may even protect from weight gain. Authorized nutritionist, M.Sc, MBA Reijo Laatikainen www.pronutritionist.net www.pronutritionistblog.com Page 1

Why nuts do not cause weight gain

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Page 1: Why nuts do not cause weight gain

Why nuts do not induce expected weight gain? They may even protect

from weight gain.

Authorized nutritionist, M.Sc, MBAReijo Laatikainen

www.pronutritionist.net www.pronutritionistblog.com

Page 1

Page 2: Why nuts do not cause weight gain

• Of all food items reviewed, nuts stood out as the most probable to protect from weight gain

• Authors state: “We found probable evidence for high intake of dietary fibre and nuts predicting less weight gain, and for high intake of meat in predicting more weight gain”

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In a systematic review of prospective cohort studies nuts seemed to protect from weight gain

Fogelholm M, Anderssen S, Gunnarsdottir I, Lahti-Koski M. Dietary macronutrients and food consumption as determinants of long-term weight change in adult populations: a systematic literature review. Food Nutr Res. 2012;56

Page 3: Why nuts do not cause weight gain

• Only in 1 clinical trial (out of 17 trials) nuts induced expected weight gain. Nuts were offered on top of dietary regimens and diets where were to be isocaloric

• Authors state: ” Further research is needed to assess the role of nuts in a weight loss diet, and further research is also required to identify why nuts do not cause the predicted amount of weight gain when added to a person’s habitual diet.”

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Randomized trials: nuts do not induce weight gain (on top of current diets)

Natoli S, McCoy P. A review of the evidence: nuts and body weight. Asia Pac J Clin Nutr. 2007;16(4):588-97.

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What are the potential reasons for the unexpected results?

After all, nuts contain more calories than regular sausages, chocolates and deserts …

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Page 5: Why nuts do not cause weight gain

1. Some of the fat of nuts is not absorbed (fecal loss)

2. Nuts may increase fat oxidation (burn) slightly

3. Nuts have high satiety value & therefore people consume less other foods (dietary compensation)

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3 plausible explanations

Mattes, Kris-Etherton, & Foster Impact of Peanuts and Tree Nuts on Body Weight and Healthy Weight Loss in AdultsJ. Nutr. September 2008 138: 1741S-1745S (Image)

55-100 %

10-15 %

10-40 %

Page 6: Why nuts do not cause weight gain

Conclusions

• Nuts seem to be weight neutral or even protect from weight gain when consumed in moderation

• Both treenuts and peanuts seem to be healthy and “weight friendly”

• Recommended dose of nuts is about 30 grams a day (less than a handful)

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Page 7: Why nuts do not cause weight gain

Wellcome aboard!

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http://www.pronutritionistblog.com (English)http://www.pronutritionist.net (Finnish)

Reijo Laatikainen, Authorized Nutritionist, MBA

Food images bought and licensed from BigStockPhoto

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