Which of the following are characteristics of the essential fatty acids? Select all that apply.
They are not energy-yielding nutrients.
They can be made from substances in the body.
They are polyunsaturated fatty acids.
They must be supplied by the diet.
They are not energy-yielding nutrients.
They can be made from substances in the body.
They are polyunsaturated fatty acids.
They must be supplied by the diet.