Products carrying the logo Demeter come from properties certified as meeting the Demeter standards.
A wide range of products including milk, meat, flour, fruit, vegetables and herbs are available from organic food outlets and some supermarkets.
Nutritional studies overseas comparing biodynamically and conventionally produced food, have found that the biodynamic food generally had a higher nutrient content. There was often a higher content of Vitamin C, iron and other vitamins and minerals, and a lower content of harmful nitrates (see Worthington, V in Biodynamics, Kimberton PA July/August 1999).
Animal feeding studies have shown that biodynamically fed animals have less illness, recover better from illness, have better fertility and fewer foetal and young animal deaths (Worthington as above).
Pest sprays harmful to human health, synthetic fertilizers and genetically modified organisms are not permitted to be used in biodynamic production.
Biodynamic animal husbandry is based on what the farm can provide. There are restrictions on both quantity and quality of brought-in feed. Animals on biodynamic farms must be able to express all aspects of their innate behaviour, and are kept with minimum stress, e.g. no hens in batteries or sows in crates.
Farmers seek to enhance the environment. Wastes are carefully recycled so that they do not contaminate water supplies, and biodiversity is encouraged.