Iodine is very important for the healthy functioning of your thyroid, which controls hormones related to growth and metabolism.

Nutrient Reference Value (NRV)

150 mcg

Food sources

• Iodized table salt
• Fish and shellfish
• Dairy products

Problems associated with deficiency

• Enlarged thyroid gland resulting in a goitre
• Insufficient production of thyroid hormones
• Fatigue
• Skin changes
• Increase in blood fats
• Delayed reflex reactions
• Reduced mental functioning
• Severe mental retardation of the foetus

Functions/Potential benefits at recommended levels

• Essential for the formation of the thyroid hormone thyroxin, which plays an important role in metabolism and growth
• Essential for reproduction
• Involved in conversion of beta-carotene to vitamin A
• Involved in synthesis of protein and cholesterol and in the absorption of carbohydrates