Here is The Roundup, Edition 27, bringing you the best from around the web from the past two weeks!
Blast from the Past
A new study has found that the number of salivary amylase gene copies appears to be strongly associated with obesity risk in humans. Those who had less than four copies of the AMY1 gene, which is fairly common, were at 8 times higher risk for obesity than those with more than nine copies. It is estimated that each additional copy of the gene affords a person 20 percent less risk of becoming obese, suggesting that how we digest starch and how our gut handles starch digestion end products plays an important role in the risk of obesity. The number of copies of this gene varies significantly between individuals, and thus this gene may potentially have an important impact on any individual’s risk of becoming obese.
These findings could help explain why some people become obese while consuming a similar amount of carbohydrate to those who stay lean. As I’ve written before, dietary carbohydrates are handled extremely differently by individuals, and there’s no evidence to suggest that starch is unhealthy for those who tolerate it well. This study demonstrates that there are measurable differences in a person’s potential ability to handle dietary carbohydrate, and tolerance depends upon important factors such as genetics/epigenetics (including amylase production), existing health conditions and the volume and intensity of activity, just to name a few.
Ultimately, this research further demonstrates the importance of self-experimentation, and the inaccuracy of the “one-size-fits-all” dietary approach. Carbohydrate tolerance varies immensely between individuals, and it’s up to you to determine the right amount for your health needs and goals.
- Data shows that celiac disease linked to increased risk of coronary artery disease.
- A randomized controlled trial shows that a high-protein diet, but not a low-glycemic diet, prevents weight regain.
- Research suggests that bacteria, viruses, and hypothalamic inflammation are potential new players in obesity.
- Evidence shows that low total cholesterol and LDL are associated with higher mortality risk in the elderly
- A new meta-analysis of fecal transplant studies shows “nearly all patients were cured” of C. diff. Amazing.
Worth a Look
- From the “duh” files: a new study suggests stress may reduce fertility.
- Some cardiologists theorize that, beyond a certain point, exercise stops preventing and starts causing heart disease.
- NPR reports on why we got fatter during the fat free boom.
- Almost everything you’ve been told about unhealthy foods is wrong. Time to rethink recommendations?
- A thoughtful review of Your Personal Paleo Code (The Paleo Cure in paperback) from Dr. Stephan Guyenet at Whole Health Source.
For the Foodies
- The Domestic Man: Grain-Free Flatbread
- Colorful Eats: Truffled Spring Green Omelet
- Plaid & Paleo: Paleo Hawaiian Crockpot Chicken
- The Healthy Foodie: Braised Pork Shanks
- Our Four Forks: Pork and Butternut Squash Stew
- The Clothes Make the Girl: Cuban Meatballs
- Worthy Pause: Persimmons with Coconut and Almonds
- Everyday Maven: Hazelnut Brownies