I used to be a damn shy boy. I wouldn't open my mouth unless I absolutely had to. As soon as I got to know people better I wouldn't shut up. I always hated my fear of opening my mouth, tried to hack it in some way.
This year, I got really sick and had a blood test done. It told me that I had been living with a mold allergy and a huge vitamin D deficiency (optimal is 100 I heard, I had 9). I started Bee's Candida Diet (which is basically vlc with tons of coconut oil and quite some clean supplements, no additives, allergens, ...). Result : I lost quite some fears (fear of heights, fear of talking, fear of the dark, ...). Those fears weren't that big in the first place, but they really improved.
Is this all due to the placebo effect, or did my bad diet had a really bad effect on my mind?