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The blood type diet | A dangerous, debunked, dieting fad

10 March, 2016
Myth of the blood type diet

The blood type diet isn't real

As fad diets go, The Blood Type diet, developed by naturopath Peter D’Adamo (read: not a dietitian, or nutritionist, or doctor) has the charming appeal of sounding logical to the layman without having any scientific credibility. Much like leaky gut syndrome, it's pseudoscience with potentially dangerous results.

What is the hypothesis behind the blood type diet?

The basic principle is that when we eat, a chemical reaction occurs between the food we eat and our blood and, when the wrong foods are consumed, the result can be damaging.

It goes on to explain that the genetically inherited reaction, caused by proteins found in food called lectins, can cause blood cells to clump or adhere together. When you eat foods that contain lectins which are incompatible with your blood type antigen, the lectins target an organ or bodily system and the blood cells can start to agglutinate. The immune system will work to protect you for the most part, but a small percentage of lectins can end up in the blood stream, causing reactions in different parts of the body.

Is there any scientific evidence supporting the Blood Type Diet?

No.

The best possible case for the blood type diet is that it has health benefits in spite of what blood type you are, while an extensive study of 1415 articles on the blood type diet found nothing to substantiate its effectiveness.

What diet can I try instead?

Think about a diet as eating for results - you can diet to lose or gain weight, introduce different vitamins and minerals to your system, or try to get the best level of performance in your activities.

If you're looking to eat healthier, try getting ten serves of fruit and vegetables a day.

Want to lose weight? Try a holistic approach to dropping a few kilos.

Need a guide on good eating principles? Try the Mediterranean diet

As always, before you radically change the way you eat, consult your doctor, a nutritionist, or a dietitian.

All information contained in this article is intended for general information purposes only. The information provided should not be relied upon as medical advice and does not supersede or replace a consultation with a suitably qualified medical practitioner. CBHS endeavours to provide independent and complete information, and content may include information regarding services, products and procedures not covered by CBHS Health Cover policies.

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