Your health begins in the shopping cart: a nutritionist's tricks to buy well (and eat better). This polarized world - word of the year - is divided between those in the supermarket who fill their carts with ultra-processed foods such as French fries and pre-cooked dishes, without looking at labels or origin.

The nutritionist Àlex Yáñez de la Cal has walked the halls of 30 supermarket chains to analyze our behaviors and those of the industry with the intention of creating an essential guide.