1. Understand what causes obesity Obesity is not caused by ‘a lack of willpower’. Many factors around food and activity influence weight gain. A good first step is to think about why you might have put on weight. Is it a recent change or part of a long-term pattern? Did you start doing something differently – eating out more, being less active or eating different foods – around the time you began putting on weight? For example, being busy at work or with family can make it harder to make healthy food choices, and might lead to you having more ready-made or take-away meals. These usually contain more saturated fat – which is linked to weight gain – as well as sugar and salt, compared to home-cooked meals, and often have larger portion sizes too. Another change in lifestyle could be that, like many people, you’re working from home more now, and have less opportunity to exercise on the way to work. Having excess weight or obesity can also make ...