The practice of drinking lemon water on an empty stomach has become a ritual for many individuals seeking weight loss, but it is surrounded by misconceptions. Aitor Sánchez, a dietitian-nutritionist and popular science communicator, points out that lemon juice does not contribute to weight loss despite its popularity. However, Sánchez emphasizes that lemon juice does not lack benefits; it can significantly enhance the absorption of non-heme iron, which comes from plant sources like legumes, nuts, and grains.

In a video shared on his Instagram account 'Mi dieta cojea', Sánchez explains that the vitamin C in lemons plays a crucial role in aiding the assimilation of iron from these foods. He advises that combining lemon juice with meat, fish, eggs, or legumes allows for much better iron absorption. This information challenges the common promotion of lemon water as a miraculous weight-loss beverage without scientific support, highlighting the importance of understanding nutritional facts over hearsay.

Ultimately, while the idea of lemon water as a weight-loss miracle is unfounded, its role in nutrition is clear. Enhancing iron absorption is beneficial, particularly for individuals who rely on plant-based sources of iron. Thus, incorporating lemon juice into meals, alongside iron-rich foods, is a practical approach for improving overall nutrient intake without falling for diet myths.