Vitamin D acts as a hormone and influences other hormones if the Vitamin D level is at eighty nmol/l or above.   I had a lot of hormone problems when my Vitamin D was in single digits prior to diagnosis of celiac disease.  Vitamin D is needed to keep bones strong and helps regulate the immune system, lowering inflammation.   I used high dose Vitamin D 3 to correct my deficiency quickly.  It's very safe and recommended by doctors.  Take Vitamin D 3, not the D 2 form prescribed frequently.  D2 is not utilized as well as D 3.  Thiamine is needed to activate Vitamin D in the body.   Interesting Reading: Safety of High-Dose Vitamin D Supplementation: Secondary Analysis of a Randomized Controlled Trial https://pubmed.ncbi.nlm.nih.gov/31746327/ High-Dose Vitamin D Supplementation Can Correct Hypovitaminosis D Prior to Total Knee Arthroplasty https://pubmed.ncbi.nlm.nih.gov/34737019/ The short-term effect of high dose vitamin D3 supplementation in improving hypovitaminosis in patients with type 2 diabetes - A randomized clinical trial https://pubmed.ncbi.nlm.nih.gov/35470105/

Yes my main goal is to  eat a guarantee  gluten free food but unfortunately I am in A very difficult situation I try to never eat gluten even if I am gonna stay hungry.i am living in the UAE with my aunt and her kids , husband and my grandma and uncle big in a small apartment,my mom is in Sudan due to her work so we can afford education here . I am now studying hard so I can get a scholarship somewhere else ,I can't work until I am 18 and basically I have no other income for me as I am still not 18 , so my mom send me an allowance every month and i buy gluten-free protein powders,nuts , dates and things i can hide and eat when I am hungry .I recently got an iron infusion and my blood tests where very bad low urea low creatine and many other deficiencies.my main priority is to stay gluten free for 3 months and then start taking vitamins,( I take oral iron every other day because the IV made my iron in the normal range but not enough I still feel dizziness and fatigue.I just want people to recommend for me things I can eat or vitamins that are easily absorbed when I need them quickly .

Thanks for explaining your situation in more detail. You are in a difficult place it seems, not having the control you need over what you eat. What are the possibilities in the foreseeable future of you finding another living situation where you have more control over your diet? You are seventeen so soon you will be an adult. What is in your future? Education? Employment. I can see now that your main impediment to health and healing is not vitamins and supplements but being able to consistently eat gluten free.

Two thoughts: 1. What if the testing turns out negative? That won't rule out the development of active celiac disease later in life. You may have NCGS now which will transition in to celiac later on. 2. Your plan implies dishonesty in hiding it from your doctor and your insurance company.

Thank you for your response. I'd love to read more about your suggestion, everything I find online speaks to the opposite. Unfortunately I need the HRT due to many other factors (post menopause symptoms and osteoporosis) so stopping the estrogen would be very unfortunate. Vitamin D is pretty good, not great, but now below the norm at 36