Ideally trans fatty acids should provide less than 1 percent of the total energy intake (or not more than 2 g for most adults).
For many families this means they should, when possible, eat more of the foods rich in unsaturated fatty acids (e.g. foods from plants and oily sea fish), less of the foods high in saturated fatty acids, and much less of the foods high in trans fatty acids.
Foods rich in unsaturated fatty acids are better for the health of the heart than foods high in saturated or trans fatty acids