Vegetable oil overdose

The US is overdosing by a factor of 10 on polyunsaturated food – vegetable oil alone comprises 25-40% of the average American’s daily calories – and these oils overwhelm our metabolism and cause chronic pain, colitis, obesity, fatigue and more, argues Cate Shanahan, MD (media features include “Good Morning America”, SPORTS ILLUSTRATED” and more), who studied biochemistry and genetics at Cornell University and serves as the Lakers’ PRO Nutrition program director.

Vegetable oil is an industry term you often see on food labels with the disclaimer that the product ‘may contain one of the following’ and it’s always soy, canola or one of the seed oils. But in the processing, new molecules have been created and they are toxic.

In DEEP NUTRITION: Why Your Genes Need Traditional Food (Flatiron Books; Hardcover; January 2017), Dr. Cate discusses how:

  • vegetable oils attack the brain at 7 distinct vulnerability points using 7 distinct strategies
  • all 7 strategies are at work in causing autism and other childhood neurological disorders
  • vegetable oils make your brain more susceptible to damage by sugar
  • eliminating these oils enables symptoms of various brain disorders to improve, from autism to Alzheimer’s
  • there are 5 specific kinds of foods you should eat to optimize brain health


When Americans cut back on saturated fat, they added oils like soy and canola – 2000x more soy oil that we did in 1909, with roughly 45% of all calories coming from refined oils.


Whether it be canola, soy, corn or other oils, over the past half century, these highly processed industrial products have gradually taken over our diets without anyone really noticing.


Refining and heating degrades the molecules in ways that create toxins, which as the #1 contributor to poor health in America.
In her book, Dr. Cate shows how vegetable oil slowly but surely erodes away health, how vitally healthy people were not too long ago, and paves the way to reclaim health.

Once a world-class athlete plagued by debilitating injuries, physician and biochemist Cate Shanahan was determined to cure her own ailments. So she researched the diets from around the world proven to help people live longer, healthier lives—diets like the Mediterranean, Okinawan, and The Blue Zones—and identified four common nutritional habits that for generations have unfailingly produced strong, healthy, intelligent children, and active, vital elders.

These four nutritional strategies form the basis of what Dr. Cate calls “The Human Diet”:

  • Fresh food
  • Fermented and sprouted foods
  • Meat cooked on the bone
  • Organ meats

Not all food is created equal. Real food contains ordered information that can direct our cellular growth in a positive way. Our family history does not determine our destiny. What you eat interacts with your DNA in ways that affect your health and the health of your future children.

By adhering to this Human Diet, Dr. Cate cured her own ailments and has since helped countless patients and readers of the original self-published edition of DEEP NUTRITION achieve their own optimum health.

Cutting through conflicting nutritional ideologies, DEEP NUTRITION combines science with common sense to illustrate how the traditions of our ancestors can help us all lead longer, healthier, more vital lives.

Care to review a copy of DEEP NUTRITION and/or speak with Dr. Cate for an elaboration of the above?

Catherine Shanahan, M.D. is a board certified family physician. She trained in biochemistry and genetics at Cornell University before attending Robert Wood Johnson Medical School. She practiced medicine in Hawaii for a decade, where she studied enthnobotany, as well as the culinary habits of her healthiest patients. She currently runs a metabolic health clinic in Denver, Colorado and serves as the Director of the Los Angeles Lakers PRO Nutrition Program.


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