Water (sparkling) with slice of lemon. Coffee, avoid latte as each 100mls of milk is equivalent to about a teaspoon of sugar, or Tea. Herb teas are good.  Alcohol; my son Rob calls beer ‘liquid toast’ hence the beer belly, but in moderation or on holiday spirits-gin, whiskey, vodka with sugar free mixers or just ice, red wine or for a special occasion champagne is OK. Remember I did say moderation because alcohol makes you hungry and could ‘dissolve your resolve’!