A quick Google search indicates that vitamin d deficiency happens less often in the UK (1/5th adults) than in the US (2/3rd adults), yet we don't see that peopl

A quick Google search indicates that vitamin d deficiency happens less often in the UK (1/5th adults) than in the US (2/3rd adults), yet we don't see that people in the UK are significantly less susceptible to get severely ill due to covid. Poor "I feel lucky" sources: https://patient.info/bones-joints-muscles/osteoporosis-leaflet/vitamin-d-deficiency#nav-2 https://patient.info/bones-joints-muscles/osteoporosis-leafl... https://www.medscape.com/answers/128762-54281/what-is-the-prevalence-of-vitamin-d-deficiency-in-the-us https://www.medscape.com/answers/128762-54281/what-is-the-pr... Note: reason might be vitamin d supplements in ordinary food is more common in the UK.