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V itamin C 500 to 1000 mg once to twice daily ( Complete Vitamin C ) Zinc 15 to 30 mg daily ( Zinc CTW ) Quercitin 200 to 400 mg daily ( Allergy Ease ) Vitamin D3 2000 to 3000 IU per day ( K-Force, Vitamin D3, Liquid D3 ) Additional options to discuss with your provider include

One can make significant lifestyle changes through stress management techniques such as yoga, meditation, adequate sleep hygiene, and a balanced diet to manage symptoms associated with hypothyroidism

GFI-1, growth factor independent-1

GHK-Cu is supplied as a lyophilized (freeze-dried) powder, typically in 50 mg vials

So, while an elderly person might actually need a B12 supplement, it becomes crucial to tailor the dose and form