The HbA1c test measures the percentage of haemoglobin in your red blood cells that has sugar (glucose) attached to it. The more consistently high your blood sugar has been, the higher this percentage will be. It reflects your average blood sugar over about 3 months, not just after one meal or one day.

The Zinzino Vitamin D Test takes away the guesswork. It’s a simple at-home finger-prick blood test that shows you exactly where your levels are right now and whether you might need extra support.