Know yourself - Indepth Material

Ultra-trace elements, such as arsenic which is known to be toxic, may be dietary essentials. However, research into their essentiality is limited and human requirement may only be estimated or suspected for some elements. Learn more.

Your kidneys have a significant role in homeostasis by ridding your body of excess nutrients and potentially toxic compounds produced during your metabolic processes. Malfunctioning kidneys are a serious health risk: how healthy are your kidneys?

Your brain is the centre of a complex control system which governs your body, but function declines with aging, sometimes resulting in dementia. What can you do to keep your brain healthy? Exercise and diet may have brain benefits.

Copper is a metal element and an essential dietary trace mineral required for several important metabolic reactions in your body. As with most nutrients either too much or too little can be problematic. How much do you need and why?

Iodine, required by and found in your body in small amounts,is a trace mineral involved in a variety of essential metabolic processes as part of important hormones. Iodide is the functional form in your body. Learn more.