How do you know eating a cheese sandwich doesn't interfere? How do you know what I did doesn't improve immunity since all those things I mentioned do seem to l

How do you know eating a cheese sandwich doesn't interfere? How do you know what I did doesn't improve immunity since all those things I mentioned do seem to lessen the severity of covid? One thing I do know, is that no doctor anywhere has claimed what I did lessens the effectiveness of those vaccines.