Families in Lincolnshire - where childhood obesity is above the national average - will be offered ten-week courses to tackle the problem.
East Lindsey District Council will hold fitness and healthy eating lessons.
A report published earlier this month showed more than a quarter of children in Lincolnshire aged between 4 and 5, are now classed as overweight or obese.
The problem is also slightly more prevalent in boys than girls.
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Mainly cloudy with showers this evening. Tomorrow, mainly fine and dry at first before showers develop through the morning.