Negative-energy' foods, like cold water and sugar-free gum, may burn more energy in digestion, though evidence is mixed. 'Free foods' such as celery, low in energy, may help individuals with weight management but don't create an energy deficit. A balanced diet and exercise are crucial.
How effective are modern weight-loss medicines such as semaglutide and tirzepatide, and what are the risks? This plain-language summary reviews the evidence on benefits, side effects and weight regain after stopping treatment, and explains why preserving muscle and bone is essential.
Is weight gain really just about eating too much and moving too little? Here, I explore the surprising web of causes behind overweight and obesity, from pregnancy and sleep to stress, screens, food environments, poverty and pollution and explain why understanding beats blame.
Most of us eat too much salt, a few eat too little, and the shaker is rarely the main culprit. Here I unpack what salt really is, whether "natural" salts are better, why iodine matters, how much sodium is just right, and who needs more rather than less.
Homocysteine is a natural amino acid linked to heart, brain and bone health. Discover how folate, B vitamins, choline, diet, genes and lifestyle affect your levels, what raises or lowers homocysteine and why lowering it does not always translate into better health outcomes.
