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Vitamin D3 is made in the skin when ultraviolet B (UVB) radiation converts a cholesterol compound into vitamin D. The liver and kidneys then process it into…

A scratchy throat can be an early sign of a common cold, influenza, COVID-19, dry air or irritation from smoke and allergies. Zinc lozenges are widely marketed…

Potassium is an electrolyte that helps nerves communicate with muscles, including the heart. When blood potassium falls below the healthy range, muscle fibres…

Vitamin A supports vision, immune defences, skin, reproduction and normal cell growth. Most Australians can obtain enough through a varied diet, so a…

Beta-glucans are naturally occurring polysaccharides found in foods such as oats, barley, baker’s yeast and mushrooms. Their effects vary according to their…

Folate is often associated with pregnancy because adequate intake before conception and during early development helps reduce the risk of neural tube defects.…

Migraine is a neurological condition influenced by genetics, hormones, sleep, stress, hydration and nutrition. Researchers have also examined riboflavin, or…

A multivitamin can help fill nutritional gaps, but the best formula depends on life stage, eating pattern, health conditions and biological needs. Age and…

Calcium is essential for strong bones, muscle contraction, nerve signalling and normal blood clotting. Yet where calcium is stored matters. Vitamin K2 helps…

N-acetylcysteine, usually called NAC, is a compound related to the amino acid cysteine. It is best known for helping the body produce glutathione, an important…