My opinion is that getting Vitamin D25 and D1,25 levels checked BEFORE supplementing would be a good idea, that way you can find out if you need to supplement (i.e., if both D25 and D1,25 are low) or not (if D25 is normal and D1,25 is high). If both are normal, you must be getting enough from your diet/supplements and I wouldn't change anything related to Vitamin D supplementation. Again, all this is my opinion, based on the few things I've read about the Marshall Protocol (severe restriction of Vitamin D to treat Lyme & other infections), and about Vitamin D. My opinion is also that Vitamin D2 is a waste of money - I took D2 supplements for a long time and they did absolutely nothing to raise my Vitamin D level.
I hope this helps...take care,
Chronic Lyme Disease, Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, Anemia, Lymphopenia, intermittant Pancytopenia, chronic malabsorption/malnutrition, etc.; G-J Tube; Currently TPN-dependent.
Meds: Zofran, Pulmicort, Vitamin B12 Shots, Heparin (to flush PICC line).