Deep Nutrition

Catherine Shanahan

Deep Nutrition



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Our beauty and health are closely linked to our genes, which are influenced by the only real means by which our body interacts with the outside world: food. A healthy diet usually corresponds to strong and healthy genes, which can help us stay fit and healthy through into our old age. This is the real secret to a long life, whose elixir can be found in the Four Pillars of the Human Diet, found at the heart of every traditional cuisine. In her book Deep Nutrition: Why Your Genes Need Traditional Food, Catherine Shanahan, M.D. explains the four pillars of healthy eating and what we can do to reintroduce them into our modern lifestyle.

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Analysis and key concepts


Traditional food can make a big difference to our health, even on a genetic level


What we eat influences our looks as well as our health


Today’s diet is harmful and dangerous because it is based on vegetable oil


Another ingredient we should try to avoid is sugar, which nowadays is found in almost everything


To get the best from our food and go back to traditional cooking methods, we need to embrace the Four Pillars of the Human Diet




Take-home message

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Many useful tips to:

  • Discover how to improve our genes and those of our children and grandchildren thanks to appropriate nutrition.
  • Study the Four Pillars of the Human Diet, foods that all the healthy cuisines have in common.
  • Take advantage of nutritional dishes to stay young and healthy for longer.

Catherine Shanahan, M.D. is an American doctor, biochemist and author. After studying biochemistry and genetics at Cornell University, she trained at Robert Wood Johnson Medical School. At the end of her studies, she moved to Hawaii where, driven by her fascination for the link between nutrition and health, she combined running her medical practice with a decade of study into ethnology and local culinary traditions. Her books Fatburn Fix, which was a New York Times Best Seller, and Deep Nutrition: Why Your Genes Need Traditional Food were a product of these studies.

Publishing house:

Flatiron Books