Seven out of 10 women are desperate to lose at least a stone according to a survey today and 85% of them see curvey Catherine Zeta-Jones as the perfect role model for weight-watchers.
Just over a third want to go even further and shed two stone or more.
The poll by the magazine Zest gives an insight into women's obsession with dieting.
Of the 1,000 women questioned, 62% had been on a diet at some time or other in their life.
Sticking to a diet is easier said than done with the festive period a particularly difficult time to keep up good intentions, the survey found.
Just over half the women said chocolate and alcohol were the main reason they failed in bids to lose weight, 71% put it down to lack of willpower and 62% could not face the thought of exercise.
Alison Pylkkanen, editor of Zest, said: "Having the willpower to resist chocolate and a glass of wine and get to the gym is tough at the best of times.
"It is clear from the survey that much of British women's stress at Christmas is caused by anxiety about over-eating and weight gain."
Welsh film star Catherine Zeta-Jones was considered to be the perfect weight, according to 85% of the women questioned, followed by former EastEnders actress Martine McCutcheon.
Nearly half thought Australian pop star Kylie Minogue was too thin, while 49% considered TV presenter Liza Tarbuck too fat.
"It's reassuring to discover that real women aren't aspiring to the emaciated look favoured by some celebrities," said Ms Pylkkanen. "Women genuinely want to achieve the toned, curvy figures of Catherine or Martine, but they are not prepared to give up everything to get it."