Inclusion Criteria:  aged 18-65 years; able to provide consent and complete all study materials; consuming >5% of TEI from free sugars; and residing in the South of England.  Exclusion criteria:  individuals who are pregnant or breastfeeding; underweight (BMI <18.5); have pre-existing medical conditions affecting swallow ability, taste and smell perception; currently or within 3 months of starting the study are following a specific dietary programme (e.g.: Slimming World); current smokers or have smoked within 3 months of the study start date; have pre-existing clinical conditions such as diabetes mellitus, eating disorders, Crohn's disease and other illness's leading to participants receiving external nutritional advice and dietary restrictions.