A Continuous Glucose Monitor (CGM) is a device which sits on the skin and has a filament which goes into the skin and measures the sugar level of the fluid between your cells. This is very similar to blood glucose but tends to lag slightly behind blood glucose readings. It can be a really powerful way to see the impact different foods have on your sugar levels.

There are two main options on the market and sometimes the companies offer a free trial. Have a look at the different options below.

Before completing a form to request a sensor it will be helpful for you to know that:

• blood glucose is measured in mmol/L
• HbA1c is also a measure of glucose levels
• Hypoglycaemia is a low glucose of <3.9mmol/L and is treated with sugar
• Hyperglycaemia is a high sugar level (>11mmol/L) and is treated with diet or medication