Wrong. The 'common cold' is a generic endemic respiratory corona virus. The 'symptoms' are the body attempting to eliminate the invaders.

and I will add to the other comment why fasting is so beneficial.

A reason people accumulate a toxic burden is that the body is spending vital energy on digesting far more than it was designed to. It has not the energy to properly sort and dispose of excess, so it stores the toxins for later processing and release. If people keep eating it never gets a break to clean house. Stress is also an energy siphon.

Before modern times people came upon food irregularly and went long periods without it.

Now people eat three big meals a day, plus snacks, and beverages and the body is constantly working to metabolize an onslaught of modern denatured foods while managing homeostasis as best it can.

Fasting gives the body a chance to play catch up on detox, repair, and regeneration often with energy left to spare.

The longest-lived people all share low caloric intake.

People who know germ theory is a lie, that it's about the terrain, who also maintain it, never get colds or disease