k yea that 40,000 per day is the rate at which the risk of hypercalcemia gets high. glad your calcium is still normal - do you have a total or ionized calcium result, with units?http://emedicine.medscape.com/article/240681-overview
A normal serum calcium level is 8-10 mg/dL (2-2.5 mmol/L) with some interlaboratory variation in the reference range, and hypercalcemia is defined as a serum calcium level greater than 10.5 mg/dL (>2.5 mmol/L). Hypercalcemia may be classified based on total serum and ionized calcium levels, as follows:
Mild: Total Ca 10.5-11.9 mg/dL (2.5-3 mmol/L) or Ionized Ca 5.6-8 mg/dL (1.4-2 mmol/L)
Moderate: Total Ca 12-13.9 mg/dL (3-3.5 mmol/L) or Ionized Ca 5.6-8 mg/dL (2-2.5 mmol/L)
Hypercalcemic crisis: Total Ca 14-16 mg/dL (3.5-4 mmol/L) or Ionized Ca 10-12 mg/dL (2.5-3 mmol/L)
fyi zinc status is poor in ms patients and affects absorption of d3 (my dose-response to d3 supplementation tripled after addressing my zinc deficiency). also zinc is needed for correct functioning of the urea cycle and if your status is poor your uric acid could be low (also typical of ms patients).
magnesium status is also poor in ms patients so if you start to feel some of the symptoms of low magnesium like muscle stiffness or pain, fatigue, muscle tics, irregular heartbeat, etc etc etc, you might want to get a test for that too.
zinc: aim for 18 umol/L
magnesium: minimum 0.90 mmol/L
i also looked at calcium in healthy controls and they appear to hang out just a smidge above the middle of the normal range.