I do have problems with these.
The first, Chirocare, has two major issues. They seem to be involved in chiropractic, which isn't scientifically supported. This alone doesn't make it wrong, but they also list no sources for their information, including the table. Once again, doesn't make them wrong, but those are serious red flags.
The second one does list sources. However, the most recent study it cites is from 2004 (over ten years ago). The majority of the studies are from the 70's and 80's. These are pretty old, and if the acid/base issue really held so true for osteoporosis, there would likely have been more recent studies, especially considering how hard and fast the nutrition industry grabs on to these things. They also don't provide actual links to the listed studies, which is a red flag for another type of issue, where some sites will put sources that either don't exist or don't actually support the finding, hoping nobody will actually try to read them. Not saying they're doing this, but it's a much more common problem than you'd think.
And the third article simply cites the first two articles, making it's information not really valuable to the discussion.
There may be other causes for the high rates of osteoporosis. As the article says:
These are areas with relatively high life expectancies, leading to increased rates of age-related diseases. More importantly however, there have been more recent studies (a few years ago) showing that drinking milk actually does NOT reduce the risk of osteoporosis, and in fact increases it. They found that the best sources of dietary calcium were things like yoghurt and cheese.
And of course, after saying this, I do not have any sources for this information on hand, so be sure to take things I say with a grain of salt as well.
Click to expand...