Obesity: what BMI means, what its limits are, and which risks are proven
BMI is arithmetic based on height and weight that does not distinguish muscle from fat and has lower thresholds for some ethnic groups. What it shows and what it doesn't.
Nutrition & Dietetics
Nutrition and dietetics cover diet and health: balanced eating without diets, sugar in food, vitamin D, iron-deficiency anemia and obesity. We explain what WHO guidance is based on and which tests reveal deficiencies. The content is for reference and does not replace a doctor's examination.
Conditions
Iron deficiency anemia: signs, causes, and iron from food
Fatigue, pallor, brittle nails — a common cause lies not in character but in iron. What tests show, where the deficiency comes from, and how to get iron from ordinary food.
Prevention
Balanced nutrition without diets: WHO principles and the plate
What WHO means by balanced nutrition, what the plate looks like, how much sugar, salt and fat is allowed, and how this looks in an ordinary kitchen.
Sugar in the Diet: Free Sugars, WHO Guidelines, and Hidden Sources
What free sugars are, where the 50 g and 30 g per day figures come from, how to read 'of which sugars' on a label, and why honey and juice count the same as sugar in sweets.
Vitamin D: where it comes from, who lacks it, and how it is tested
Sun, oily fish, and a 25(OH)D test: what is known about the sources of vitamin D, who lacks it, and which marker is used to assess deficiency.