Vitamin D is made in our skin via direct exposure to sunlight. Our liver and kidneys then convert it into a form we can use. Vitamin D is extremely important for strong bones and teeth, as it helps us absorb the calcium we eat and it also controls the amount of calcium in our blood. It’s really important that our vitamin D levels aren’t low or our body won’t absorb the calcium we eat.
There aren’t any visual signs of vitamin D deficiency. If our levels are very low and we are severely deficient, we are at risk of developing weaker bones which is a condition known as osteomalacia. Severe deficiency in children may result in soft skull or leg bones and their legs may look curved or bow-legged, which is a condition called rickets. As low levels are common in the UK, it’s worth getting tested if you’re concerned. Ask your GP for a blood test.