Kate Hudson talks exclusively to Red about her break-up with Muse singer Matt Bellamy, being on ‘worst dressed’ lists, and why Jamie Oliver is right about sugar.

On breaking up with Muse singer Matt Bellamy

"If it doesn’t work, you can’t force it. The bigger you love, the more vulnerable you are, the scarier it is if it’s lost. So people tend to get more and more protective of their heart. Well, I’ve spent a lifetime not wanting that ever to happen. But, in the last couple of years, I’ve found that attachment is the root of a lot of uncomfortable moments in your life. When you start to let go of them, you feel really liberated. I do believe that it is better to have two people as parents that are truly happy in themselves for [the sake of] their children. If they can’t sustain that at home and if it’s affecting their family, then they have to look at their relationship. But I think it can be catch 22: I’ve seen some people not do the work inside the relationship. Of course, the goal is always to stay together. Matt and I really worked on it together and we came to the point where we realised that we are really better as friends and that is a healthier approach for our kids. And we can see the results."

On rumours of her relationship with 23-year-old musician Nick Jonas

"The media scrutinises all single women in the public eye. You cannot have a conversation with a man without being attached to them. One: can women not be friends with men? Two: are they implying that a single woman is constantly looking to be in a relationship or is in need of a man? You don’t get that with men."

On bad press for her Michael Kors dress at this year’s Golden Globes

"You know, I’m 36, not 50. The other day I saw this woman hiking in the mountains, she must have been 70 and she had a crop top on, and I thought: 'Why not? Do what you want! Who cares?'"

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On mindful parenting

"When my kids get emotional, I like to allow them to experience it first, but then create an environment in which they are able to communicate what they are really feeling."

On body image

"If you want to look a certain way, here’s the thing: it’s not easy. You cannot just 'like' a picture on Instagram and all of a sudden see changes in yourself – or then hate on that person because you don’t have the same discipline. We need to stop judging each other. Just focus on our own set goals. Perfection is for amateurs! The perfect, the ideal is not the goal. Instead the goal is feeling good in your body."

On eating too much sugar

"I’m very friendly with Jamie Oliver and I’m a big supporter of what he’s doing [with his campaign for a tax on sugary drinks]. I’m a great believer in everything in moderation. But, I think the real issue with sugar is it acts like a drug and there’s too much in our food. It’s simple: it’s so bad for you. We have to really look at why the rate of cancers have risen and why obesity is such a big problem in Britain and in the States, and I would suggest that sugar is the number one cause of that. I know, it’s hard. I’ve got two kids and they go to school, have snacks and eat a lot of sugar. But I think the more you educate your kids, and the more aware you are yourself, the better it is."