It's winter ...

and that means Vitamin C

On Sunday, I noticed an irritation in my throat -- indicative of a cold to come. So, I upped my Vitamin C intake. Typically, I take a 500mg chewable every night. But On Sunday and Monday, I took one after lunch plus the night-time.

Today is Tuesday. The irritation is gone. No sign of an impending cold.

Vitamin C seems to be a helpful immune booster if you use it early enough.