Drink for vocal health. Instead of picking up a bubbly soda or acidic juice, reach for water. Water is the best thing for keeping your vocal chords moist. Eat for voice training by having at the very least eight glasses of water per day, and drink one to two glasses of water before you perform.
Avoid salty foods. Salt will dry out your body and your vocal chords. This means that you should be reaching for non-citrus fruits and vegetables at snack time instead of salty nuts or potato chips.
Say no to chocolate and any other caffeinated foods or beverages. Not only does caffeine affect your anxiety levels, it is a diuretic that can deplete your body of the water it needs.
Steer clear of anything dairy. Cheese, milk, ice cream and butter all thicken the mucus in your throat. Eat for voice training by eating as little dairy as possible to keep your throat clear of mucus.