@cookielemons Only 2 minerals are used in bone mineralization: calcium or phosphorus. As metabolism decreases, bone mineralization via phosphorus increases. For a brief correlation: older people have a higher phosphorus to calcium ratio in the bones than young people (who have higher calcium in the bones), and older people also have more bone fractures than young people. For the amount of phosphorus naturally occuring in the diet, it's actually pretty hard to balance it on a 1:1 parity with calcium, which is a way more important balance than with magnesium.
High dietary calcium does not cause a problem, you urinate out excess. PTH causes all kinds of problems with calcium metabolism, tho. PTH raises when dietary calcium is low, and this forces calcium rich tissues to dump calcium into the blood, and for calcium uptake everywhere. It's an emergency response and redistribution by the body because of how vital calcium is for metabolism and the heart. If dietary calcium is not present, supplemental vitamin D can place higher demand on calcium, which will raise PTH to get it, and this cause the afformentioned problems.
This is not Peat's crazy ideas he just made up. I can't remember the Japanese researcher, but he got a nobel prize for his research on calcium metabolism. Peat referenced his work.
Peat is on the ball with calcium metabolism.
While it's totally possible to be so low in magnesium, and metabolism be so retarded, you could possibly cause problems, it's possible you just weren't eating magnesium rich foods. Kidney stones are actually created by elevated PTH -- this is paradoxically caused by low dietary calcium.
Toying with mineral balances is mostly what it sounds like: playing wackamole -- because minerals can never be regulated effectively until thyroid is addequate. the body doesn't feel the presence of a high calcium food and go "oh no, need more magnesium." Storage, utilization, and/or discarding of nutrients, is a constant automatic process. Either the metabolism is functioning to do this, or it's retarded. hand-selecting the nutrients to attempt to bypass this has little basis in reality as far as I understand it.
Sodium and calcium are the only minerals you really have to conciously consume in accute weigh-able amounts, the rest come from a nutrient dense diet. They function like a chemical, directly impacting physiological processes. Sodium turns off aldosterone, a vasoconstricting hormone. Calcium lowers PTH, a calcium leaching hormone. Both of these are stress hormones.
Between coffee, milk, OJ, oysters, and liver, you should hit your other mineral intakes decently well.