Re: apple cider vinegar
thanks for the details, sorry.. so many questions, just hope you are enjoying writing your book and wish someday i can read it
i've just seen this about acv, which caught my attention
"By taking a little apple cider vinegar before a meal, you can increase stomach acidity and thereby improve digestion and nutrient uptake. "
But since vinegar is less acidic than stomach acid wouldn't it follow that vinegar would reduce stomach pH? (unless the watery contents of vinegar flux out of the stomach at a higher rate than the acidic contents of vinegar?)
True, vinegar is less acidic than stomach acid. But the stomach tries to reach a certain pH for proper digestion. If the body is capable of producing sufficient stomach acid it will keep releasing stomach acid despite the vinegar in an attempt to reach the optimal pH. Therefore, using vinegar in cases where the person's stomach is capable of producing sufficient acid the acidity of the vinegar really offers no benefit. The people vinegar will really help are those that cannot produce stomach acid or very little stomach acid. And you are right, raw apple cider vinegar will work best as it also provides nutrients that can help the body produce its own stomach acid.
I think you are correct. For older people, stomach acidity (pH) may go up,
Just so readers do not get confused that should have read alkalinity, not acidity.
so maybe in that case vinegar would lower pH. For people with normal pH I don't see how it could lower pH overall.
It won't, but again if the person's stomach is functioning fine it will continue to secrete stomach acid to lower the pH further to the optimal acidity.
My only guess would be that adding acid lowers the pH of chyme (food) before the stomach acid has started to be produced.
Also other says
If you have low acid in your stomach you will have poor digestion which most people think is that they have too much but in most cases you don't have enough. If you injest ACV and you feel better then the problem is your stomach acid is low but if you feel whose and feel that you acid burning sensation then ACV is going to nothing for you. So if you stomach acid is low then ACV will increase the acidity in your stomach for a positive reaction but if you have a normal or high amount of acid then you will get a negative reaction.
Is it correct or just theories?
They started out OK. If you have low stomach acid not from H. pylori then the vinegar can make the digestion better and thus the person feels better. On the other hand, if a person has sufficient stomach acid the vinegar is not going to make the person feel worse. Adding a weaker acid, such as vinegar, to the stronger acid is not going to irritate the stomach that still has a protective lining to protect it from acid. The only reasons that I can think of that would lead to a burning sensation would be gastritis or an ulcer. But stomach acid can also affect these.
but also i think they aren't thinking in the nutritional value of the acv, which gives to the body the vitamins for proper stomach acid