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).
A: Your FRA is the age at which you become entitled to your full Social Security retirement benefits based on your lifetime earnings. Your FRA depends on your birthday. People born between 1943 and 1954, for instance, reach full retirement age at 66.