Mental health. Mental health is a level of psychological well-being, or an absence of mental illness. It is the psychological state of someone who is functioning at a satisfactory level of emotional and behavioral adjustment.
Carbohydrates in a lime. There are: 7 carbohydrates in one fruit (2 diameter) including the peel. 4 grams of carbohydrates in one fruit not including the peel. 3 carbohydrates in each ounce or 28g of lime.
Michelle is talking about hydrated lime (calcium hydroxide) while Shannon is discussing the mineral lime (carbonates of calcium and magnesium). The mineral lime is not caustic while the hydrated lime can be, through its alkaline properties, but it is not toxic. It is commonly used to pickle vegetables for instance.