While most celebrities indulge in expensive bottles of champagne over the festive period, Stephen Fry will actively avoid the bubbly - for fear it could kill him.
Champagne triggers his asthma symptoms and can induce a potentially life-threatening attack, the presenter said.
"Christmas parties are generally a lot of fun but I have to make sure that I avoid champagne because it triggers my asthma symptoms," he said.
"People don't always realise that there are all sorts of different triggers for asthma, including plenty of things that are in abundance during the festive season.
"Champagne can leave a lot of people feeling poorly the next day but for me it is far more serious because it could trigger a potentially fatal asthma attack."
He made the comments as the charity Asthma UK says 200 people will be admitted to hospital on Christmas day because of their asthma.
It has released some festive tips for the UK's 5.4 million asthma sufferers, such as avoiding dusty decorations and steering clear of scented candles, perfumes and smoky environments.
Sufferers should prioritise and plan their time well and in advance to avoid unnecessary stress which can also be a trigger for symptoms. Cold weather can also bring on symptoms so people should wrap up warm, a spokeswoman said.