Sodium is the mineral component of salt. Excess sodium intake is linked to an increased risk of high blood pressure. Sodium plays a role in the transmission of nerve impulses and the contraction of muscle fibres. Along with potassium, it is essential for maintaining a proper fluid balance in and around your cells. During cooking, natural sodium may be lost (up to 55%), but if salt is added then sodium content is increased.
Thinking about peeling your vegetables? Stop! While vegetables such as carrots, parsnips and potatoes are typically peeled before cooking, try leaving the skin on. Not only will you barely notice a difference, the extra fibre is great for you—just be sure to give the vegetables a good wash.