Articles by Mark J. Smith, Ph.D.
Fact Checking the Data Behind Blue Zones
Loren Cordain, Ph.D. and Mark J. Smith, Ph.D.
Blue Zone regions and diets are based on data from people who make it to 100 years of age, but these aren’t the oldest populations in the world. 
Topical Vitamin C Benefits for Skin Health
Mark J. Smith, Ph.D.
Vitamin C creams and serums claim benefits for skin health like reducing wrinkles and skin discoloration. How does vitamin C help skin? 
The Paleo Diet Is an Anti-Inflammatory Diet
Mark J. Smith, Ph.D.
Chronic inflammation is at the heart of most chronic illnesses, including autoimmune disease. Here’s how The Paleo Diet can stop inflammation and minimize your risk of chronic illness. 
Plant Protein vs. Animal Protein: What’s The Difference?
Mark J. Smith, Ph.D.
Are plant-based proteins just as good as animal proteins? No, in the debate of plant protein vs animal protein, the science clearly shows that animal proteins are healthier and better sources of protein for several important reasons. 
Why The Paleo Diet Doesn’t Focus on Macronutrients
Mark J. Smith, Ph.D.
We are individuals with different dietary needs and seasonal availability. So why try to stick to a set macronutrient profile that has previously never existed, when variability is a part of life? 
How to Start Eating Healthy: Our 85/15 Guide to Natural, Healthy Eating
Mark J. Smith, Ph.D.
Need more wiggle room in your diet? Try this categorized approach to dieting that will get you results while allowing you to enjoy your favorite off-limit foods. 
Is Being Vegetarian Actually Good for the Environment?
Mark J. Smith, Ph.D.
We explore these two dietary practices in terms of their environmental impact, and compare it to the impact of The Paleo Diet®. 
Whole30 vs. Paleo: Comparing the Science
Mark J. Smith, Ph.D.
How does the Whole30® diet compare from a science perspective to The Paleo Diet®? From our research, it closely resembles Paleolithic nutrition. 
The Importance of the Omega-6/Omega-3 Ratio to Human Health
Mark J. Smith, Ph.D.
Humans evolved to consume approximately a 1:1 ratio of omega-6 to omega-3 fatty acids. While there has been a push for a higher consumption of omega-3s, many don’t realize they’re also over-consuming omega-6s. 
How to Squat Like Our Paleolithic Ancestors to Improve Health
Mark J. Smith, Ph.D.
A plethora of research shows a sedentary lifestyle is harmful to one’s health. Instead of chair-sitting, try squatting which uses a higher level of muscle activity for better health and longevity. 
The Sodium/Potassium Ratio and Its Importance in Human Health
Mark J. Smith, Ph.D.
Evidence suggests that the sodium/potassium ratio with a Paleo Diet is far more beneficial to human health when compared to a typical Western diet. 
The Importance of Sleep for Your Immune System
Mark J. Smith, Ph.D.
We often focus on diet and exercise to improve our health and immunity, but the importance of a good night’s sleep can’t be overstated.