Vitamin d = 13ng/ml. now on 50, 000iu weekly tx. what potential symptoms can be attributed to this very low vitamin d level? how long to normalize?

Mild deficiency: You may be at increased risk of osteomalacia (bone softening), but less likely as a male. This site may be helpful to answer questions about various levels of vitamin d deficiency, and recommended supplement levels: https://www.Vitamindcouncil.Org/further-topics/i-tested-my-vitamin-d-level-what-do-my-results-mean/ with more detailed information here: http://ods.Od.Nih.Gov/factsheet.