The Hong Kong College of Cardiology is reminding the public of the dangers of trans fats, ahead of the Lunar New Year holiday.
Doctors say many baked and deep fried festive snacks have high levels of trans fat, which can increase the risk of heart disease and strokes.
College president, Dr Chan Ngai-yin, on Friday warned people not to over-indulge in puff pastry, egg tarts and butterfly biscuits.
He also says food labels are misleading, and trans-fat may appear to be higher than the label may suggest.
He said trans-fats were even worse for the heart than saturated fats, and could cause a rise in bad cholesterol and a fall in good cholesterol levels.
He said this could increase the risk of heart attacks or strokes.
Hong Kong's diet has come under increasing scrutiny in recent years.
Earlier this week, the Consumer Council warned that it found excessive amounts of salt in a third of the 100 samples of roasted or braised meat it tested from restaurants and shops.
The watchdog said one roast pork lunch box it sampled had a sodium level that was 20 percent higher than the World Health Organisation’s recommended daily limit.