The technical bit: Tonic partners with Fitech for our cholesterol and glucose testing. Assessments have an accuracy range of +/- 10%. For instance, this means a person’s actual cholesterol reading could be 6, but in one assessment show as 6.6 and in another 5.4 for example. Cholesterol readings are indicative of the overall position and should be taken with other factors such as weight, family history, smoking and high blood sugar. The NHS recommends that total Cholesterol should be less than 5, more than 5 gives an increased risk. Completing a full lipid test gives a much clearer picture, for example you could have high total cholesterol but also high HDL, which counter act and balances out the reading. In short, all readings need to be taken in context with all risk factors.