Apples can help prevent constipation, arthritis, gout, gastroenteritis, and diarrhea. Apples are excellent diet foods. Only 47 calories per apple. Even the smell of an apple has a calming effect. Apple pie, apple juice, fresh apples are all great.
The National Institute for Occupational Safety and Health (NIOSH) is the United States federal agency responsible for conducting research and making recommendations for the prevention of work-related injury and illness.
NIOSH Pocket Guide to Chemical Hazards: Calcium Oxide. International Chemical Safety Cards (WHO/IPCS/ILO): Calcium oxide. Cain, W.S., et al.: Sensory and associated reactions to mineral dusts: sodium borate, calcium oxide, and calcium sulfate.