Friends worried about health Zayn Malik: He is under stress and not eating!

Zayn Malik during a visit to Miami showed his body, when it published pictures of him shirtless. However, these photos have sparked concern as sources say the singer looks too thin. 20-year-old singer has lost a few pounds, and there is no doubt that this is a consequence of the tour. Earlier it was revealed that the boys are holding healthy diet and regular exercise, and that their personal chef Sarah Nichols preparing healthy meals. Because of this, as well as from all of the jumping, running and dancing on stage every night, it's no wonder that Zayn lost a few pounds, but sources say that the real source of weight loss is stress. "A lot of the lost weight. He began to eat healthy while ago, and exercise in order to get into shape because he had never practiced, the source told Us Weekly, adding, "It has always been the thinnest of all the members of the band, but I think he exaggerates as the always stressed and his health is not in the first place." That annoying time for Zayna will not end soon. Only in the next three months, the group will perform more than 35 concerts throughout the United States.