FORTY-five per cent of the country's population between the ages of 15 to 64 drink alcohol.
Of this, 35 per cent consume alcohol until they lose consciousness.
Divisional medical officer northern Doctor Pablo Romakin revealed this during the launch of the World Diabetes Day in Labasa on Thursday.
While there is no scientific evidence yet to directly link the consumption of yaqona to non-communicable diseases, Dr Romakin said out of 65 per cent of people who drank grog in the country, 52 per cent actively indulged in grog consumption.
"There is a need to learn to eat the right food, stop smoking, eat less fatty, salty and sugary foods, exercise daily and stop drinking alcohol," he said.
"For those people who are already diagnosed with NCDs, they need to fully comply with the medical treatment and visit health clinics daily and also comply with the management of their food intake."
Dr Romakin said NCDs were preventable if people took ownership of their lives and avoided excessive consumption of alcohol, unhealthy foods, smoking and instead exercised their bodies regularly.
"We have to practise and promote wellness to ensure a healthy balance of mind, body and spirit. Breathe fresh air and develop a smoke-free and pollution-free environment," he said.
"Eat a lot of fruits and vegetables, drink a lot of clean and fresh water and move a lot at home, school, at work and think positively all the time.
"We can control and prevent NCDs and keep the people in Fiji healthy and always remember- 'I'm Healthy and I Know It'."