You may have heard about a –extremely ridiculous- diet named the “Blood type diet”. It’s a diet that says that people should eat differently depending on whether their blood type is O, A, B, or AB. According to Peter J. D’Adamo, the deluded fella that created this nonsense, if you follow his diet you’ll be healthier, lose weight, have more energy, and even help prevent disease. And win the lotto too.
Here it is: this diet is nothing but a fad, a scam and utter nonsense, both from a biological & scientific and a common sense (we love using our common sense) perspective. Let’s see why:
ALL humans have the exact same digestive system. Like all cows share the exact same digestive system and lions also share an exact digestive system. Humans are naturally designed and built to thrive on a plant-based diet. There is nothing healthier than following a balanced 100% plant-based nutrition. This is a fact that has been confirmed a trillion times. NO human in this world has an inherent dietary requirement for eating meat, fish, eggs and dairy. Not us, not you, not our next-door neighbour, not the guy that works at Pete’s local grocery store and not your friend’s funny-looking brother. We can get all the nutrients, vitamins and minerals directly from plants, without the nasties that come when eating and filtering nutrients through animal sources.
Yet, according to this diet, depending on our blood type we should eat different stuff, including stuff that biologically we don’t need. Who cares that our digestive system is the same, that certain foods will *always* have a detrimental effect in our body, and that certain foods are not even nutritionally required by our species? Check out some of the nonsense: According to this diet most people are encouraged to consume dairy, when we know that this isn’t good for us, but the opposite. This diet basically states that most people were born to drink maternal milk from another species, yet some should have it low-fat. Also according to this diet some people should avoid eating chickens and instead eat lambs, while others should concentrate on eating cows and others were born to eat a heavy protein diet from animal sources, when we know that this isn’t 1) a dietary requirement for any of us and 2) detrimental to our health and the cause of many diseases. This diet does encourage everyone to eat vegetables and fruits… Surprise, surprise.
Humans have 4 blood types, dogs have 4 blood types, cats have 11 and cows have about 800. Does this “blood type” thing apply only to humans or to all other animals? Perhaps some cows should eat fish? And what about lions? Should some of them just eat courgettes and grapes? Perhaps some humans should make cheese out of maternal milk from hippos instead of from cows? And some cats perhaps should have an exclusive diet of bananas?
And what’s going on with all those vegans that don’t eat anything that comes from an animal while belonging to one of the blood types that “should” be eating meat like there’s no tomorrow? How is possible that they are so incredibly healthy? Even healthier than those with the same blood type that follow this diet? X-files?
When it comes to diets for many it’s something like religion; some people “need” to believe in them. Many people use diets like this one as an excuse and attempt of justification to eat what they shouldn’t or what their bodies don’t need naturally. People want to believe in “magic” diets. People want to be able to justify why they eat the -bad or unnecessary- things they eat.
The best advice we can give you about diets is this: NO. This applies to all sorts of diets. The diet mentality is never a good one to have, but sadly it’s everywhere these days. We don’t *need* to be on a “diet” to lose weight.
What the hell happened to just making healthy choices the majority of the time and working out? It’s as simple as this.
No diet will ever bring the benefits than eating healthy will bring.