Now Christmas is over and many of us are trying to stick to New Year's resolutions about healthy eating and losing a few pounds.
For thousands of our poorest families across Wales, it's not as easy as it sounds. So today a campaign was launched to show how we can all feed our families on a tight budget. Our Valleys Reporter Hannah Thomas has been finding out more.
The Change4Life website has lots of advice on how to eat well. Tips range from getting kids involved in finding healthy food by letting them carry the shopping list - and watching out for the 'hidden nasties' (sugar) in food. You can also sign up to receive recipe ideas.
The advert forms the centrepiece of a campaign which aims to encourage the public to manage the amount of salt, fat and sugar in their diet.
The Change4Life adverts, which are made by Aardman, the creators of Wallace and Gromit, have joined forces with a range of food manufacturers and ITV to host the first ever health-focussed ad break during Coronation Street.
Everyone is cost conscious and health conscious in January, and the Food Smart brochure provides some healthy swaps, from unhealthy takeaways and ready meals to tasty alternatives that are easy to make at home, like stews, curries and even fish and chips.
Food Smart is here to help us all make good choices about what we put in our bodies each day and help prevent diseases like cancer, strokes, heart disease and type 2 diabetes.
The recipes are all low in sugar, salt and fat and are a really easy way to get those important five a day
The Health Minister, Lesley Griffiths, is helping to launch a new healthy eating campaign at Coleg Morgannwg today.
It's part of a drive to help thousands of families across Wales to switch to healthier dishes that are tasty, simple, quick and cheap to make. The new campaign, called Change4Life aims to make the public aware of the hidden 'nasties' in the food we eat.