When S&S prompted me to download Pamela Weintraub's update to Cure Unknown, it reminded me of just how good she is at taking medical info and making it easy to understand. Here's a site that has many of her articles: http://experiencelife.com/author/Pamela-Weintraub/
One article in particular caught my attention because it applies to many of us using prescriptions for cholesterol, blood pressure or stomach acid. She talks about how proton pump inhibitors (PPIs) reduce stomach acid but that low stomach acid is actually detrimental to the absorption of some essential nutrients, including B12. I know that some here use pepcid as a way to block histamine receptors and I know that these drugs are different than PPIs. But I pass it along as an FYI...
Research from the National Institutes of Health, published in Current Gastroenterology Reports, shows that long-term use of PPIs can limit the body’s absorption of essential nutrients, including calcium, magnesium, iron and vitamin B12, which require gastric acid to be absorbed. Risks include not just osteoporosis, but also anemia, fatigue, seizures and cardiac events.
http://experiencelife.com/article/the-other-drug-problem-2/
It's a fascinating article and if you're on any cholesterol, blood pressure or stomach medication, you need to read this one!