This study claims that potassium bicarbonate supplementation reduced urinary nitrogen wasting, supposedly by correcting diet induced low grade metabolic acidosis.
This study compared a net acid load diet to an alkaline diet (makes me wonder what exactly was in the diet). It reports that on the forth day an oral dose of 1 g of calcium was given to the subjects. They say the absorption of calcium didn't differ between the groups, but the acid-forming diet increased urinary calcium excretion by 74%.
But, when I look at a textbook like this, the body has many ways to control the pH of the body, it makes no sense to go after the calcium in bones.
The obvious explanation is that potassium bicarbonate has some other effect on calcium and nitrogen excretion other than "correcting" acid load, because you have clearly shown that acid load in the form of animal protein does not cause bone or calcium loss. The diet study was rather short and I'm not sure how to interpret the results of it.
You might also find this article by Weston Price interesting (you need to scroll down a bit):
I have recently taken an interest in the pH of the body, and have read a few books on the subject, e.g. one by this author: http://www.christophervasey.ch/EN/HOME.html However, reading your article for sure was a "wake-up call" to reality, but also raises questions...For instance, if the acid-base balance of food-stuff is not relevant to explain the demineralisation of teeth and bone, what is the theory behind the devastating effects white sugar, white flour and alcohol, among others within a "westernized" diet, have on the human body?
I was looking at an alkaline foods list at this site. Most meats are listed as acidic. Does the body compensate acidity will calcium from the bones?
It lists many things I thought were acidic as alkaline. Eg. Lemons, I always thought they were very acidic. The mentioned it was based on the alkaline ash? not the ph level of the food.
Enjoy. And thanks guys for opening this debate up - I have read a fair few articles that point to the increase of acid food consumption leading to an increase in calcium being found in the content of urine (suggesting it IS being removed from the body).
lemon was miss interpret by many that lemon can hurt the stomach if you have ulcer and you drink from it, but actually lemon is the treatment of ulcer, you felt pain when you drink lemon it's because there is a wound in your stomach
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