Nutritional recommendations and scientific evidence. Are there more doubts than certainties?

Increasing importance is given to the promotion of healthy nutrition in the population. Childhood is a key time in this regard. The task of establishing clear and permanent recommendations is not easy due to the difficulty to carry out quality research in nutrition, to the changing character of the evidence at times and to the influence that we intuit can make the food industry. To avoid the confusion that sometimes reaches to the population, health professionals should be aware of these difficulties and transmit those recommendations as carefully and rigorously as possible.