I help keep your gums healthy and can help fight disease. I am found in oranges, lemons, limes, grapefruit and other citrus fruits:who am I?

Vitamin C

Because Vitamin C is found in all citrus fruits.  That's why doctors always say to drink orange juice when you're sick (it fights diseases).

if u need the answers look it up on google youll find it trust im just saying this incase no one out : )

exercising at a moderate intensity, and slowly increasing the duration.