Welcome to the diet that knows you best.

Dr. Peter D'Adamo's Blood Type Diet: the most popular personalized diet system in the world.

by Peter D'Adamo

There are thousands of digestive enzyme supplements out there and available to the general public. However, just like the process of optimizing one’s food selection, the typical digestive enzyme formulas lean too heavily on the one-size-fits-all mantra.

Variations between the blood types regarding the production and array of digestive enzymes have been extensively reported in the medical literature. That’s why I thought it was important to develop a line of enzymes that took the strengths and weaknesses of each blood type into account.

After over two years of development and testing, we’re ready to release these new TypeZyme formulas.


The Integrative Healthcare Symposium awarded Peter D’Adamo, ND, as the recipient of its 2023 Leadership Award, which was presented to him today during the Integrative Healthcare Symposium in New York City.

The Leadership Award recognizes a pioneer whose contributions have shaped integrative healthcare and paved the way for other practitioners and professionals. This year, David Brady, ND, DC, CCN, DACDN, IFMCP, FACN, chief medical officer for Diagnostic Solutions Labs, presented the honor.

Notable past recipients include Andrew Weil, MD, David Perlmutter MD, FACN, ABIHM, Joe Pizzorno, ND, Mark Hyman, MD, and Tieraona Low Dog, MD.


Some observational data shows that high fructose intake is associated with metabolic syndrome, obesity, and liver disease. Observational studies are ones where the researchers observe the effect of a risk factor, diagnostic test, or treatment without trying to change who is or isn’t exposed to it.

One study found that consuming 255 grams of fructose per day did lead to an increase in liver fat and reduced insulin sensitivity. It also showed the same result if you consumed 255 grams of straight glucose as well, suggesting it may not be just the fructose that is the issue.


Your blood type has everything to do with how you digest your food, your ability to respond to stress, your mental state, the efficiency of your metabolism, and the strength of your immune system. “Blood types are critical predictive markers for disease,” says Dr. Peter D’Adamo. And in light of the current coronavirus pandemic, this significance is even more profound.

Is there a link between blood type and susceptibility to COVID-19 – the disease caused by the novel coronavirus SARS-CoV-2? Recent research points to the answer being “yes.” In fact, several studies indicate that those with Blood Type A may be more vulnerable to contracting the disease, and those with Blood Type O may possess protective genes that put them at lower risk.


View a short video on '5 Things You Need to Know About Your Blood Type'

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