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Her situation improved when she stopped taking the supplements and started on a therapeutic regimen including Acne Oral Medication and methylprednisolone

There are several factors which may contribute to a vitamin D deficiency: Lack of sun exposure to naturally produce vitamin D (use of sunscreen or indoor jobs, environmental pollution) Advanced age, as the ability to naturally synthesize vitamin D decreases Fat absorption disorders such as celiac disease or Crohns disease Melanated skin tones, which decreases the ability to naturally absorb UV rays to produce vitamin D Allergy or intolerance to foods rich in Vitamin D (dairy products and fatty fish) If unable to achieve the recommended daily allowance of vitamin D (600 to 800 international units (IU) for adults) with lifestyle or diet modification alone, you may consider supplementation, which can be taken in pill form or given as an injection

This makes it harder to get vitamin B12 from food, raising the risk of deficiency

If you are B12 deficient, your body may struggle fighting off pathogens which may make you more susceptible to viruses

Injection therapy offers several benefits, particularly for those looking to target specific health and wellness goals

The injectable form achieves 90% serum bioavailability within 2 hours versus 7% average absorption from oral supplements in patients with gut disorders