A 43 year-old man who has consumed alcohol heavily for more than 20 years, and now works as a labourer, is referred to the liver clinic. He is overweight (BMI 28 kg/m2), and his liver tests are elevated. Upper abdominal ultrasound demonstrates hepatomegaly with increased echogenicity suggestive of steatotic liver.

Which of the following statement on population measures is true and might prevent further harm in this patient?