Here is The Roundup, Edition 25, bringing you the best from around the web from the past two weeks!
Blast from the Past
Lactase persistence is a common genetic trait in many worldwide populations that allows them to consume dairy as a significant and health-promoting component of their traditional diets. An ancient DNA analysis has revealed a high frequency of European lactase persistence earlier than previously believed, reaching over 70% of the population by the year 1200 AD. The ability to rely on dairy products as a source of nutrition likely conveyed a selective advantage during times of resource scarcity, and the lactase persistence gene has independently evolved at least five times in European, Middle Eastern, and African populations.
Since humans have been consuming dairy from goats, cows and other ruminants for over 10,000 years, it’s not surprising that genetic selection for lactase persistence was favored in regions that dairy farming was an important component of food production. I’ve argued before that for those who tolerate it, full fat, organic, and even raw dairy can be a wonderful health food. And if you’re one of those people who have some trouble with the lactose in milk, I’ve written an article on how to cure lactose intolerance, which has received positive feedback from many readers who tested the protocol themselves.
While dairy isn’t a required component of a healthy diet, many folks find it worth it to include it in their diets for a variety of reasons – so it’s helpful to know how to maximize your ability to digest dairy products if you’re interested in enjoying them on a regular basis.
- Older adults who take blood pressure drugs have a greater risk of serious falls, a new study reports.
- A study finds lactose intolerance to be common in Hashimoto’s patients, and lactose restriction leads to improvement.
- Sunlight is believed to reduce the chances of developing MS, and new research suggests this may be independent of vitamin D production by protecting against brain and spinal cord inflammation.
- Green tea contains the amino acid L-Theanine, which is associated with a reduction in anxiety and also weakens the rise in blood pressure in high-stress-response adults.
Worth a Look
- Laura Schoenfeld shares her thoughts on the recent “is it Paleo” debates.
- In case you’re wondering whether Lyme exists in California—it does.
- Mark Sisson explores existing science about the benefits of massage.
- Richard at Free the Animal reports on study showing gut bacteria produce enzyme that processes phytic acid into nutrients body needs.
- Research confirms that internet trolls are narcissists, psychopaths and sadists. Why am I not surprised?
- Some new—and somewhat conflicting—research on the benefits of high-intensity interval training.
For the Foodies
- Everyday Maven: Paleo Asian Meatballs
- Meatified: Leek and Sweet Potato Soup
- Plaid and Paleo: Crockpot Chipotle Chicken
- The Iron You: Orange Thyme Pork Kebabs
- Virginia is for Hunter Gatherers: Moo Goo Gai Pan (蘑菇鸡片)
- Health Starts In The Kitchen: Teriyaki Beef Heart Jerky
- The Healthy Foodie: Paleo Zucchini Chocolate Cake
- Paleo Fondue: Banana Fosters Pie