Originally Posted by mack
How would you know if you were over dosing on vitamin D? Any symptoms?
Yes, you can overdo it, but you wouldn't overdose by takling too much at one time. It would happen gradually that you'd build up an excess.
You'd also build up a toxic level of calcium. Symptoms: "Anorexia, nausea, and vomiting can develop, often followed by polyuria, polydipsia, weakness, nervousness, pruritus, and eventually renal failure. Proteinuria, urinary casts, azotemia, and metastatic calcifications (particularly in the kidneys) can develop."
This doesn't happen from too much sun, but from too much supplement taking for months on end.