If you are a smoker quit smoking. Eat three meals a day, doesn't mean you have to eat a lot. Eat alot of vegetables and fruits - at least 1/4 cup worth a day. Avoid processed/canned fruits as they most likely added sugar to it. Exercise daily at least half an hour a day. Stay hygienic. Eat more proteins than junk food. Lessen the amount of snacks a day to 1-2 each should be 100 cals or below. Avoid eating a lot of carbs as it can raise insulin and make you feel hungry often.
Common food borne illnesses are things like salmonella, E. coli, and listeria. I’m naming these since they are the most common, and the easiest way to avoid them is by ensuring the food is cooked thoroughly.
Answer:
Frequent and thorough hand washing and foot care is a good way to prevent germ or fungus buildup. Nails that become too long and/or are rough and torn can scratch and cut an individual's skin and may result in a local infection.