How to eat sugar without gaining weight (crush your cravings and end energy crashes) | Prof Tim Spector & Prof Sarah Berry

Sugar is a complex nutritional component that, when consumed in excess as "free sugar," triggers significant metabolic stress, inflammation, and potential long-term health risks like type 2 diabetes and cognitive decline. While the body requires glucose for energy, modern diets often rely on ultra-processed foods that cause rapid blood sugar spikes followed by energy-depleting dips, leading to overconsumption. Crucially, sugar found naturally within whole foods like fruit is processed differently due to fiber and polyphenols, which mitigate negative health impacts. Rather than eliminating sugar entirely, adopting a gradual reduction strategy and pairing sweet treats with healthy fats or proteins can stabilize blood glucose levels. Simple habits, such as a short walk after eating, further dampen the physiological stress caused by sugar, emphasizing that the context of consumption is as vital as the sugar content itself.