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Nutrition Science & Health

My current writing lives on Food Truth, Unfiltered

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Nutrition is a science.

More specifically, nutrition is a life science rooted in biochemistry primarily focused on understanding how diet and its various (chemical) components impact health and disease.  And there is significant consensus about health, longevity, and sustainability, if you look to science.

Yet there is a considerable amount of misinformation when it comes to diet advice, which is why I started this blog in 2011 and left my full-time academic job to focus on bringing science back to the center of the conversation:  Expertise matters when it comes to diet guidance and your health.

This blog, including its food stories, articles, and many recipes and videos in "Cooking & Eating the P.K. Way" was largely retired during the pandemic (c. 2020). Some of my favorite plant-based and comfort food holiday recipes have been compiled into a set of free e-cookbooks, and you learn about all things food and nutrition from farm to fork and far beyond in my newest book, Food and Nutrition: What Everyone Needs to Know (Oxford University Press, 2025).

Summer farro salad with snap peas, cherries, and almonds.

Nutrition 101: Science-Backed Diet Advice

  1. How to Sort Science from Junk-Science
  2. What to Eat? Harvard’s Healthy Eating Plate
  3. Top 10 Healthy Holiday Eating Tips
  4. How to Clean Up Your Diet
  5. Know What You’re Eating: How to Measure Your Diet
  6. OMG GMO!
  7. The Nutritional Benefits of Going Whole Grain
  8. Whole Grains, Paleo, and Gluten-Free Diets
  9. Mind-Body Benefits of Exercise

Latest from Food Truth

Read all posts on Substack
Food & Nutrition: What Everyone Needs to Know, second edition, by P.K. Newby (Oxford University Press)

Evidence-based answers to 150+ FAQ on all things food and nutrition, from farm to fork and far beyond.

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Dr. P.K. Newby

Founder and CEO Dr. P.K. Newby is a Harvard- and Columbia-trained nutrition scientist and author of Food & Nutrition: What Everyone Needs to Know. She writes Food Truth, Unfiltered, a free newsletter on Substack.

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