Why should I drink plenty of water when taking this fibre? — weight loss + prebiotic, Sibirskaya Kletchatka , 300 GR

Dietary fibres — both soluble (inulin, polydextrose) and insoluble (from the wheat grain husk) — swell in the digestive tract, and it is precisely this that creates a feeling of fullness. Without enough water this process works less well: the fibres do not swell fully, and the insoluble fraction may slow down the passage of food instead of easing it.

A practical rule: a glass of water right when you take the mix and another 1.5–2 litres of fluid throughout the day — this is a general recommendation for a diet higher in fibre, not one specific to this product. If you drink little, do not start with fibre — first sort out your fluid intake.

One more point: if you are only just introducing fibre into your diet, do it gradually. A sharp increase in fibre combined with a lack of water is a common cause of bloating and discomfort. Start with a small portion and increase it over several days, watching how your body reacts.