The major natural source of vitamin D is a synthesis of cholecalciferol in the lower layers of skin epidermis through a chemical reaction that is dependent on sun exposure (specifically UVB radiation). Cholecalciferol and ergocalciferol can be ingested from the diet and from supplements. Only a few foods, such as the flesh of fatty fish, naturally contain significant amounts of vitamin D
Mr. Lovenstein comics are available here: https://www.mrlovenstein.com/archive
You can buy Mr Lovenstein swag from here: https://www.teepublic.com/stores/mrlovensteinref_id=10158
DBD 5-27-2021: healthy sunshine
The major natural source of vitamin D is a synthesis of cholecalciferol in the lower layers of skin epidermis through a chemical reaction that is dependent on sun exposure (specifically UVB radiation). Cholecalciferol and ergocalciferol can be ingested from the diet and from supplements. Only a few foods, such as the flesh of fatty fish, naturally contain significant amounts of vitamin D
Mr. Lovenstein comics are available here: https://www.mrlovenstein.com/archive
You can buy Mr Lovenstein swag from here: https://www.teepublic.com/stores/mrlovensteinref_id=10158
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