Vitamin D 5000IU daily, when I have respiratory disease I increase my daily dose to at least 15-20K IU Vitamin C and multivitamin with various vitamins, both t

Vitamin D 5000IU daily, when I have respiratory disease I increase my daily dose to at least 15-20K IU Vitamin C and multivitamin with various vitamins, both these in drinks Vast majority of population is vitamin D deficient all year round, even spending at least 4 hours a day half naked outdoors in Hawaii would not provide you enough vitamin D [1], even 80-90% of Indian population living close to equator with much more sunlight is vitamin D deficient [2]. At very least I'd recommend following Finnish guidelines. [3] [1] https://pubmed.ncbi.nlm.nih.gov/17426097/ https://pubmed.ncbi.nlm.nih.gov/17426097/ [2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6060930/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6060930/ [3] https://academic.oup.com/eurpub/article/27/2/268/2670162 https://academic.oup.com/eurpub/article/27/2/268/2670162