The present invention relates to composite nutritional products that have been reinforced with one or more pro-oxidative minerals selected from the group consisting of iron and copper, and that contain an appreciable amount of unsaturated fatty acids. More particularly, the invention provides a composite nutritional product comprising: .10-80 wt. % of a cereal-based cover containing at least 20 mg per kg of cover of pro-oxidative mineral selected from the group consisting of iron, copper and combinations thereof； and .20-90 wt. % of a lipids-based filling containing at least 5% of unsaturated fatty acids by weight of the filling. The composite nutritional products of the present invention exhibit good oxidation stability.
