Advice sought on proper dosage of Vitamin D

by Dave
(Upstate NY)

I am a 35 y/o white male, 167 lbs, good health overall. I was diagnosed IBS years ago and have battled stomach/intestine problems for years, and been prescribed everything under the sun from Paxil to Librax.

Recently, referred to a gastro when symptoms became unbearable for a year straight. Problems with weight maintenance. Had SIBO, got that resolved. C-diff neg, blood however showed a mod/severe corn allergy.

Fast forward 6 months on as corn-free a diet as one can do in the good old USA and I am doing much better. My concern is, I was told I was vitamin D deficient by the gastro, but he did nothing about it.



He said it would resolve itself once I worked out my diet to be corn free to resolve the mal absorption issues.

My Dr wont do another test and wont prescribe D3. I want to take D3 and magnesium myself but not knowing blood levels, am wondering what a good starter dose would be for D3 and for how long, followed by what maintenance dose?

I'm asking because the winter blues are really getting to me (SAD) and the sun wont shine here in upstate NY for another couple months. I need some relief!

Thanks in advance!