Question

which fat is made by adding hydrogen to vegetable oil and should be limited?
unsaturated
saturated
trans
polysaturated

Explanation:

Trans - fats are formed by adding hydrogen to vegetable oil (a process called hydrogenation). They are associated with negative health effects such as increasing bad cholesterol (LDL) and decreasing good cholesterol (HDL), so their consumption should be limited. Unsaturated fats (including polyunsaturated) are generally considered healthier. Saturated fats also have some negative health implications but are not made by adding hydrogen to vegetable oil in the way trans - fats are.

Answer:

C. trans