Dietary fats are important because they are the ones that produce  energy for the body. Fats should be monitored since excessive fats  can be risky for your health.
Age last birthday: One method of insurance rating which rates people a their age as of their last birthday, with such rating held until the next birthday. If your policy is approved at your current age (prior to your next birthday), you will be rated at your current age (as opposed to age nearest birthday).
teens (the time of life between the ages of 12 and 20). mid-twenties; twenties (the time of life between 20 and 30). Holonyms (time of life is a part of...): life; life-time; lifespan; lifetime (the period during which something is functional (as between birth and death)).