Blood group diets – science or pseudoscience?

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Upfront, the detractors.  Weightlossresourcesuk say:

Medical experts universally agree that the theory is nonsense, and say there is absolutely no link between our blood group and the diet we eat. Consequently you won’t find qualified nutritionists or dietitians recommending this diet.

Right – you’ve been warned.  Now, what about the proponents?

Each blood group has its own unique antigen marker (a substance that the body recognises as being alien) and this marker reacts badly with certain foods, leading to all sorts of potential health problems. Furthermore, Dr D’Adamo believes that levels of stomach acidity and digestive enzymes are linked with your blood type.

Because blood types evolved at different times throughout history, we should eat a diet based on the types of foods our ancestors typically ate at the time when our blood type was first recognised.

Ludicrous huh?  I thought that and then checked here, where it told me things I could and couldn’t eat.

While it said things which my doctor told me in 1999 [the last time I went to one], such as severely curtailing meat and dairy, it also told me that certain foods were a magic bullet and two of those were buckwheat and red wine, which I swear by.

Cabbage on the other hand, which I also swear by, was on the poisons list for my blood type.  Plus I love meat but can only have chicken and some fish according to this.  Interestingly, I’ve been tending to this of late and trout, my favourite, is classed a magic bullet here.

Perhaps the best way is to take vague note of it and don’t eat any of them to excess.

14 Responses to “Blood group diets – science or pseudoscience?”

  1. More pseudo-science for gullible people.

    According to the lists I should be dead years ago. To find reason in this we should follow the money.

  2. The reason I ignore all this ‘rubbish’ is that the next person who tries to dictate to me what I can eat, drink – or in fact tries to tell me what I can and cannot do – is liable to get a two word response!

  3. What happens if you don’t know your blood group??

  4. I can’t believe people waste time and money on this sort of research. Surely there are more worthwhile ways to spend the money, time and effort?

  5. [...] here to see the original:  Blood group diets – science or pseudoscience? | nourishing obscurity This entry is filed under Group. You can follow any responses to this entry through the RSS 2.0 [...]

  6. Don’t know about the science but I feel better when I have next to no meet in my diet….particularly pig produce. I eat fish but not shell fish if I can help it and try and avoid cheese but still have whole milk and eggs……sounds a bit strange but this is something I have been doing through a process of elimination in my diet….. and I do feel better for it.

    But I can not recommend enough doing a gallstone flush……very unpleasant business but it DOES work…..look up gall stone flush on you tube.

    I am quite evangelical about this and I have had NO gallbladder pain since doing it. Also feel 10 time better than I did before the flush….will be doing a few more flushes because it takes a few to get all the stones out…but be careful if you do it. I felt like I was having a heart attack!!!!

    In a nutshell it (The method I used) involves drinking fresh apple juice for 2 days with a strict veggie diet of salad…then on the third day drink LOTS of water up until 18:30pm with NO food. Then at 18:30pm Start drinking a mixture of quarter of a pint of olive oil and quarter of a pint of FRESHLY squeezed Lemon juice. Drink the rancid mixture over a period of 3 hours whilst lying perfectly still on your right hand side (So the solution can settle in your gall bladder) watching TV then wait………..I waited until 3:00am until I started to pass these gall stones (About 30 the body can hold hundreds of these things depending on size)….but I WARN YOU I FELT LIKE I WAS DYING.

    Then over the next week I started to feel better than I had in years!

    I have tried colonic irrigation twice and that was alright (Not pleasant but a million times easier and less traumatic than the Gall bladder flush) but this is amazing.

    The gallbladder is such an important little organ but never works when its clogged up with stones and because of our western diet most of us have to some extent a clogged up gall bladder.

    Right I am going to shut up now and try to get some sleep.

  7. I’d say everything is worth investigating Sue, because valuable insights can often turn up in the most unlikely places, but the investigation has to be done properly. The problem with so much stuff like this, however, is it is often just cynically made up rather than based on real evidence. The level of detail in the link given by James would have required a huge research effort for it to be authenticated. It’s not an area I am familiar with, even though I co-authored a nutrition textbook some years back, but it does seem to bear all the indicators of nonsense made up to sell a book. Changing focus slightly, it always amazes me how readily people will believe nonsense couched in the language of science if it says something that they would like to believe, but will blithely ignore things for which the evidence is stacked in mountains if it’s something they wish wasn’t true.

  8. I’m with you CherryPie:)

  9. What moves ends up in the cauldron and we eat far too much of everything. Red meat is dreadful for many reasons and there may be a greater wisdom in your final sentence, James.

  10. I agree that some research can turn up some amazing and unexpected results. Unfortunately, we have had nannying rammed down our throats for so long (whether meant well or not), I am sick to death of hearing it. I advocate a normal well balanced diet with a goodly amount of exercise and ignore all the advice/research/claptrap!

    Dieting is dangerously obsessive and each new “revelation”, just makes people become more desperate.

  11. Well the best thing is you can have a look and a try and if it doesn’t work for you you can go back to normal. No one is, at the moment anyway, forcing you to try it.

    I’m sure that there are many discoveries out there waiting for someone to try out and let the rest of the world know. It will then by scientifically tested. Some will work with a few people some will work with many, some with all.

    Everyone is different. IMO: Just don’t go spending money or something that doesn’t have any scientific backing or someone who you know that has tried it.

    If it is something like this and the ingredients won’t kill you then go for it. It must be worth a try.

  12. [...] is turning into a medical blog.  The Economic Voice explained in comments on this post how to do a gallstone flush and it clearly works for him.  I went searching and present to [...]

  13. I’m not sure about this James- as Andrew said above if something is not scientifically proven ie through processes like random trials then its likely any effect it has is a placebo rather than an actual effect. People may swear by it but that doesn’t mean that it actually has a good effect.

  14. Yes, it does seem the best advice.

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