RESEARCH OF THE WEEK
Preformed vitamin D, the kind found in eggs, fish, and meat, is about 5 times as bioactive as vitamin D3 . This makes animal foods a rich source of vitamin D and may explain why human skin lightened after the adoption of agriculture—so they could replace the vitamin D they no longer got from hunted meat.
Deficiencies of carnitine (a nutrient found in meat) may explain some autism cases .
Some people may be overdoing  vitamin D supplementation.
Given a prompt, airport visitors are more likely to walk  than ride the people-mover.
Using alcohol to reduce executive control improves creative problem-solving  (but not divergent thinking).
Reducing dietary advanced glycation endproducts has no effect  on inflammation or cardiovascular health in overweight/obese adults.
NEW PRIMAL BLUEPRINT PODCASTS
Episode 177: Dr. Loretta Breuning : Host Elle Russ chats with Dr. Breuning about her research into the best way to manage these crazy neurochemicals we’ve inherited from our ancestors.
Each week, select Mark’s Daily Apple blog posts are prepared as Primal Blueprint Podcasts. Need to catch up on reading, but don’t have the time? Prefer to listen to articles while on the go? Check out the new blog post podcasts below, and subscribe to the Primal Blueprint Podcast here  so you never miss an episode.
INTERESTING BLOG POSTS
My 10 favorite high-fat Primal keto recipes —a guest post I recently did for Greatist.com.
Activity trackers have the potential  to provide great data for analyzing population health, but there’s still a long way to go.
Trade routes during the Copper Age spanned long distances .
For all our access to artificial lighting, our daytime light exposure is downright pathetic .
“You make your own barriers .”
The Vatican has outlawed gluten-free bread  for Holy Communion.
This past winter, California storms destroyed the only road leading into and out of a small community in Big Sur, forcing residents to hike everywhere. You’ll never guess what happened  to their health.
Another reason  not to eat boxed mac and cheese.
A religious tradition  everyone can get behind.
THINGS I’M UP TO AND INTERESTED IN
Facebook live event I’ll be doing: Hang out with celebrity nutritionist, Primal Kitchen Cookbook contributor, and Body Love author, Kelly LeVeque, as she takes a deep dive into her health and wellness journey with me and Primal Kitchen COO, Morgan Buehler, on July 21 at 11 AM Pacific .
Contest I’m excited about that ends tomorrow at midnight—so hurry: This one . Win a Primal birthday cake kit.
Big announcement I’m excited about: The South Bend, Indiana, Primal Kitchen restaurant is officially opening on July 21 ! Go give ’em (and your micronutrient profile) some love.
Success story I’m digging: Andrea Boyer  took her health on a 180º with Primal principles after being diagnosed as pre-diabetic and with Celiac. Today she’s loving life and coaching others to take back their vitality.
I want some: Avocado pit totems .
Concept I’d never considered: Tennis grunts are strategic .
- I always love NomNomPaleo’s stuff, and paleo pudding parfaits  are no exception.
- Creamy tarragon chicken salad , a nice protein-and-fat bomb.
One year ago (Jul 16– Jul 22)
- 3 Common Types of Headache (and How to Treat Them Naturally)  – No one’s head should hurt needlessly.
- The Fat-Burning Brain: What Are the Cognitive Effects of Ketosis?  – How keto makes your brain work gooder.
COMMENT OF THE WEEK
“Mice eating their bones – that’s self-sufficiency!”
– You reminded me of something, Catherine . The day I turned 18, my parents kicked me out of the house. One of the most important first steps I took on the road to self-sufficiency was to start consuming my own hair and fingernails for extra protein.