A daily cup of latte coffee can add around 4.5 kg (10 pounds) to your weight a year, British experts have warned. The boom in high-street coffee shops is helping fuel the obesity epidemic in Britain, the Daily Express reported, citing fitness trainers' body the Register Of Exercise Professionals (REPS). A small cup of latte with full-fat milk contains 153 calories while a cup of black coffee with semi-skimmed milk has only 35. Even health-conscious people who avoid junk food do not realise how much fat and sugar they are drinking, said REPS, which carried out a dietary study of 2,000 British adults. It added that half of Britons are now classed as overweight or obese, and warned that the number will rise higher.