O’s can round out high-fat, meat-heavy meals with keto staples like fish, eggs, greens, berries, and nuts. Modern O’s have inherited abundant stomach acid and digestive enzymes needed to thrive on a traditional keto diet. Studies show O’s are resistant to many diseases and have the lowest heart-disease risk of the four types. Today, about 45 percent of us carry their hardy blood type. Fossils suggest their keto-like eating habits “made them quite tall and healthy for their time,” he adds. “They were formidable hunters who ate meat as their main fuel,” says Dr. Type O traces back 60,000 years to the very first humans.

“In a short time, you see the astonishing difference that comes with eating right for your type!” What should Type O eat? D’Adamo helped conduct tests to link each blood type to an ideal diet, then melded in keto principles. Many studies now link blood type and certain health conditions-for example, type O is least likely to get IBS and most likely to have a slow thyroid. Turns out, each blood type developed at a specific point in human history and reveals clues about the diet that helped your ancient ancestors survive and thrive. To pinpoint keto foods that’ll block or boost your success, “your blood type is the key to unlock the mystery.” Eat too much stuff you can’t digest, and it causes a domino effect - “inflammation, bloat, suppressed metabolism and many health problems,” notes the doc. Why? Complicated science boils down to this: There are compounds in food that only some of us digest well. “Your body must switch from burning sugar as fuel to burning ketones, a type of fuel it makes from stored fat,” explains Dr. How does blood type affect keto?īasic keto cuts carbs to about 40 grams a day, slashing the production of blood sugar. Folks using them report turbocharged losses of up to three pounds every day.

The answer: “It can actually personalize the one-size-fits-all diet and make it significantly better!” As proof, he created special keto guidelines. So why mess with a good thing? “People were constantly asking if my plan works with keto,” he says. “That’s true across all four blood types,” shares natural-health expert and researcher Peter D’Adamo, ND, who helped pioneer the famous approach. In large polls, a whopping 85 percent to 90 percent report being delighted by their results. Devotees insist the book’s strategies - with a diet customized for each blood type - work absolute magic. With more than 7 million copies in print, Eat Right 4 Your Type has been a bestseller for over two decades.

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