An interesting new Danish study looks at associations between a simple diet quality index based on saturated fat and fibre and the dietary advices: ‘Eat a varied diet’, ‘Engage in regular physical activity’ and ‘Maintain a healthy body weight’. It is based on data from 3151 Danish adults aged 18–75 years. Greater food variety for women, high leisuretime physical activity, frequent intentions to eat healthily and low energy intake were significantly associated with high diet quality. The study did not demonstrate any association between BMI and diet quality. Conclusion: The health behaviours ‘Eat a varied diet’ and ‘Engage in regular physical activity’ were positively associated with healthy eating. The dietary habits reported were strongly influenced by personal intentions. Thus, the biggest challenge for public health nutritionists will be to reach non-compliers who seldom have intentions to eat healthily.