Although the british growing season is over, we can still buy asparagus from supermarkets. This delicate green vegetable is very low in caloires and is packed with vitamin A, C & E, folic acid, potassium and iron. Walnuts are high in vitamin E, a powerful antioxidant and it is in a highly beneficial form. They contain high amount of plant based omega-3 fatty acids, protein, magnesium, phosphorus and fibre.