Sodium Sulfite

If you’re one of the many asthmatics out there, steer clear of sodium sulfite. It’s a preservative used in winemaking and dried fruits, but it was recently banned as a spray-on for fresh fruits and vegetables. An FDA study showed that 1 in 100 people are sensitive to sulfite, which constricts airways in asthmatics and those with sensitivities.

Severe sensitivities can lead to rashes, headaches, and complete respiratory failure. That’s definitely not a chance you want to take.