ianf said:
I am not a nutritionist or a scientist. But I am a victim of the nutritionist's approach. It is only when my naturopath in Denver switched me from eating anything to the blood group diet.
In my case it has moved me from IBS and CFS to a fit 56-year old cycling athlete who trains 7/7 and rides 40k tts in 1 hour flat. 3 months before changing my eating habits walking up one flight of stairs was a 15-minute painful task.
I have suggested this approach to a number of other people all of whom have seen similar benefits.
An unscientific answer but one that is based firmly in practice.
Eat Right for Your Type, Dr Peter d'Adamo
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*Green tea is exceptionally beneficial for the O blood group type.
Well, ok; not sure if there was an answer there. In any case, the point I was trying to make was that teas, coffees, and even alcoholic beverages are complex enough substances that some--not all--contain beneficial substances in degrees. They have their downsides, too, also in degrees.
For teas and coffees, the notable downside is caffeine. As a stimulant and a mild diuretic, your average person needs to keep an eye on their intake... not too hard. Coffee contains moderate amounts. Most black teas contain fairly little, and most green teas contain extremely low levels of caffeine. Teas made from other plants with similar properties, like redbush or rooibos, contain none. In varying degrees, many teas and even some coffees are loaded with healthy ****. Rooibos teas tend to sport potassium, zinc, iron and magnesium, along with olaxic acid and generally high anti-oxidant levels. Green and black teas contain folic acids, naturally occuring flouride, and high anti-oxidant levels as well.
Spend about 3 seconds browsing the web and you'll find volumes of reputable sources. You'd be hard-pressed to find many complaining about the dangers of tea.
Coffee's higher levels of caffeine make it less easy to pass off as a friggin' health tonic, but it's worth pointing out that as a roasted-bean tea, it's fairly high in good plant compounds as well. The anti-oxidant activity levels go down with progressively darker roasts, but the content is present. There are numerous studies linking coffee drinking to the prevention of liver cirrhosis, and even more identifying lower instances of colon cancer in coffee drinkers.
Again, it's not medicine, but it's far from "horrible" for you, unless you have a particular sensitivity to moderate caffeine levels.
Beer? There's a whole thread about beer, above. It's brewed from vegetable compounds and derrives some good stuff from that process, but of course, you've got alcohol to contend with: a slightly poisonous, diuretic depressant.
That is, a slightly poisonous, diuretic depressant which I don't mind tossing down my hatch from time to time, in careful moderation. If drinking in moderation--maybe one to three drinks a week--is shown to be largely harmless, and maybe (like coffee or tea) conveying of some subtle health benefits, I'll continue to do it because I
like the stuff. It's tasty.
I'm sure you're right that different blood and body types can benefit from different dietary guidelines, so thanks for bringing that up.