On National Childhood Nutrition Day, Dr Michael Barnish explains how nutritional deficiency can affect children’s growth and development

Glutathione is often described as the body’s master antioxidant – offering potential protection from free radicals, which cause oxidative damage, otherwise known as ageing of our cells.

Preventative health simply means measures or interventions taken to prevent disease or ageing. Health, disease, and disability are dynamic processes in an individual’s life and therefore preventative healthcare must be as equally dynamic and adaptable to the changes that occur.

Vitamin D deficiency can present with fatigue or tiredness, bone or joint pains, muscle pain, low mood, low energy and more frequent infections. Severe deficiency has been linked with more serious chronic diseases and osteoporosis. Coming out of lockdown it's advisable to be aware if you're vitamin D deficient.

Omega-3s are an essential part of our diet and research suggests that supplementing with omega-3 fatty acids, EPA and DHA could improve mood and memory. Genetic testing can assess the impact that omega-3 and omega-6 fatty acids may have on your health.