To stop the obesity pandemic, the world needs a shift in mindset, recognising that this is not simply a matter of individual choices but a systemic issue that governments, civil society and businesses can and should solve.

Category 4: Ultra-processed foods, such as sugary cereals, ice cream, soft drinks, and “instant” meals like cup ramen

Why are behavioral interventions effective? Laurette Dubé, a lifestyle psychology and marketing researcher at McGill University’s Faculty of Management, notes that our environment is currently one in which ubiquitous, sophisticated marketing efforts prey on our need for sensory gratification as well as our vulnerability to misinformation. In addition, the poor eating and exercise habits we observe in our friends, family and colleagues encourage us to follow suit. In essence, behavioral interventions seek to reconfigure this environment into one in which our needs for information, gratification and social encouragement are tapped to pull us toward healthy food and exercise choices rather than away from them. “When we are getting the right messages in enough ways, we have a better chance of resisting the urge to eat more than we need,” Dubé says. Weight loss surgery, also called bariatric surgery, is sometimes used to treat people who are severely obese. Orlistat works by preventing around a third of the fat from the food you eat being absorbed. The undigested fat is not absorbed into your body and is passed out with your poo. This will help you avoid gaining weight, and may help you to lose weight.

a body mass index (BMI) of 28 or more, and other weight-related conditions, such as high blood pressure or type 2 diabetes setting realistic weight loss goals – if you're living with obesity, losing just 3% of your original body weight can significantly reduce your risk of developing obesity-related complications As well as helping you maintain a healthy weight, physical activity also has wider health benefits. For example, it can help prevent and manage more than 20 conditions, such as reducing the risk of type 2 diabetes by 40%. Step #1: Insulin delivers glucose to your cells for energy. Much like a “key,” insulin signals cells to open up and take in glucose for energy.

We'll be releasing two videos, but you'll have to wait till next week for Part 2. Part 1 that we release today focuses on the problem, in other words what's gone wrong with our metabolism that's causing one-third or more of the adult population to become obese. To emphasize that insulin causes obesity, Fung explains that you can make someone fat by regularly dosing them with insulin. As Fung witnessed, you can see this in diabetic patients who take insulin daily—weight gain is a ubiquitous side effect.