Still have my tonsils. Before I started d3 supplementation along with minerals, a good multi (with k2) and Iodoral I got colds and flu all the time. All. The. Time.
Anecdote only.
Actually I got colds all the time. I’ve only had something that was probably the flu once. But it was guaranteed I’d get colds 2 or 3 times a winter and even in the summer.
The only exception for summertime colds were summers I got a lot of mid day sun.