Wednesday, February 10, 2010

Does Meat Really Leach Calcium From the Bones?

by Chris Masterjohn

I have a new blog post over at Mother Nature Obeyed on the Weston A. Price Foundation site:

Does Meat Really Leach Calcium From the Bones?


Read more about the author, Chris Masterjohn, PhD, here.


  1. Chris, you are brilliant!

    I went digging around the sites that advocate an acid-alkaline balance diet. Here's what I found:

    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):

  2. Cordain seems out of touch in a lot ways, specifically on dairy and saturated fat. I wonder why he's so influential.

  3. Nice article. However, the formatting makes one's eyes bleed. How about some line breaks?

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  6. 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:
    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?

  7. bariatric surgery memphis

    the body has many ways to control the pH of the body, it makes no sense to go after the calcium in bones.

  8. 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.

  9. To the commenter above. The Alkaline Food list you've pointed to is seriously flawed. I recommend you check out a few alternative lists.

    The reason lemons are alkaline is because of the effect they have on the body rather than the acid/alkaline state of the food before consumption.

    I've blogged about it here: lemons ARE alkalising

    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).

    Lots more research needed!

  10. 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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