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Show Notes for Episode 9
If you want to skip around within the episode, this will help you navigate:
02:16 The listener’s question on Ca/P
02:53 Outline of the episode
05:26 Roles of calcium and phosphorus and distribution among foods
13:56 Physiological principle of need to balance calcium and phosphorus
21:18 Role of endocrine hormones in regulating calcium and phosphorus
43:24 How different foods rich in calcium and/or phosphorus affect PTH levels (different effects of phosphorus-based additives, whole grains, meats, and cheese)
52:20 My own calcium and phosphorus intakes
55:22 Weston Price's data for calcium and phosphorus intakes in pre-industrial societies
1:02:20 Potential genetic differences in the requirement for calcium and vitamin D
Relevant Links for Episode 9
These are useful resources for better understanding the regulation of the calcium-phosphorus economy:
- The Linus Pauling Institute: Phosphorus (free)
- The calcium and phosphorus chapters in Modern Nutrition in Health and Disease. This is one of the few textbooks I was required to purchase in school and found so useful I kept as a cherished reference. When the most recent edition came out, I bought the Kindle version, which is incredibly easy to navigate and take notes from compared to the hardcover version I have in my office. If you don't like affiliate links, you can use this non-affiliate link.
- Robert Heaney's chapter in the Feldman Vitamin D textbook, Vitamin D: Role in the Calcium and Phosphorus Economies (behind a paywall but should be accessible through a library)
- Raposo et al., A mathematical model of calcium and phosphorus metabolism in two forms of hyperparathyroidism. The full text is available on researchgate.net.
- Acute effects of different phosphorus sources on calcium and bone metabolism in young women: a whole-foods approach. The full text is available free on researchgate.net.
- Habitual high phosphorus intakes and foods with phosphate additives negatively affect serum parathyroid hormone concentration: a cross-sectional study on healthy premenopausal women. The full text is available free on researchgate.net.
- One of Jane Kerstetter's studies showing meat enhances calcium bioavailability. (free full text)