Versele Laga Menu Nature Fatballs with Nets. Suet ball - winter fatty food for wild birds Mixture of pure beef fat, cereals and seeds. Ideal for the winter season. Checked on the presence of ambrosia seed to prevent this parasitic plant from invading your garden. Without added colourants. Composition Cereals, derivatives of vegetable origin, oils and fats, seeds, minerals. Analytical Constituents Protein 9.5% Fat Content 24.0% Crude Ash 3.5% Crude Fibre 3.0%