[Terry_Roll]

Totally agree with your point on taking supplements can shorten lifespans, in tablet form other ingredients are not that healthy, some chemicals that can be classed as a vitamin or mineral shouldnt be included and a-once-a-day delivery regime isnt always good for you either although its convenient.

Choline is used in the cell wall membrane, its also used in the connections between neurons and it also helps lower the pressure of the fluid in the alveoli to make the gas exchange better. So brain fog, seen with Covid, pregnancy (baby brain), and old age all sign of needing choline which can be reversed if taking amounts throughout the day. Thats the science I've read, its already there but even negative scientific studies highlight the minimum or maximum range of an amount a chemical for a pathway.

Its massively complex and I dont seen many entities except perhaps some massive drug companies who have developed drugs or practices giving away their knowledge by virtue of product or action.