Canine anxiety conditions – are nutraceutical diets likely to help?

Studies in humans and rats indicate that selected nutraceuticals can assist in reducing the presence of neuro-chemicals associated with stress. As a result of this, manufacturers propose that diets enhanced with such nutraceuticals can support the management of behavioural responses associated with stress. A number of studies have suggested that the addition of a range of such nutraceuticals to the diet of animals can assist in altering and managing their behaviour. Punica granatum from the pomegranate has been used to treat insomnia and anxiety in rats. The roots and rhizomes of Valeriana officinalis (the common valerian plant) have been used to treat mild sleep disorders and ‘nervousness’ in mice and extracts for the rosemary bush (Rosmarinus officinalis) have been found to have antianxiety activities in a species of mouse. L-Theanine from green tea leaves has been widely reported to reduce stress and to reduce the heart rate during chronic anxiety in humans and many studies suggest that a lack of l-tryptophan is associated with anxiety and depression. In addition, studies on a range of species have linked a lack of omega-3 with mood and behavioural disorders, and the presence of free radicals to long-term harm to organ systems, including the brain. However, none of these nutrition-based studies have been performed on dogs.