Food that contains approximately 8,200 calories that Samuel, 47, would typically consume in one day before he had brain surgery following a stroke, is displayed for a photograph at his home in Mexico City, Mexico, February 3, 2021. "I regret not taking care of myself, on having annual check-ups like blood tests to check my sugar levels, cholesterol," said Samuel. "With obesity, I developed diabetes and had an operation on my head for a blood clot due to a stroke." Nutritionist Betzabe Salgado, who works at the Hospital Infantil de Mexico Federico Gomez, calculated the calorie amount. REUTERS/Carlos Jasso SEARCH "JASSO OBESITY" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. THE IMAGES SHOULD ONLY BE USED TOGETHER WITH THE STORY - NO STAND-ALONE USES. 

Food that contains approximately 6,600 calories that Daniela typically consumes in one day as she tries to lose weight while taking part in a weight loss program, is displayed for a photograph at her family home in Texcoco, Mexico, January 8, 2021. Daniela was 11 years old when a doctor told her she would not live more than another six or seven years. Weighing 75 kilos (165 lb), about twice the recommended weight for her age, she had just suffered a minor heart attack. That was two years ago. She still remembers the pain in her chest. Then she was also diagnosed with diabetes. Daniela knows the disease well: she watched eight family members die from its complications. "The doctor told me that I'll die, that I'll not even turn 18 years old," she said. Now Daniela is 14 years old and weighs 81 kilos. Reuters was unable to contact the doctor, who treated Daniela at a different facility previously, but her current caseworker confirmed Daniela's account. "Instead of losing weight, I put on more," Daniela added. Nutritionist Betzabe Salgado, who works at Hospital Infantil de Mexico Federico Gomez, where Daniela is undergoing a weight loss program, calculated the calorie amount. REUTERS/Carlos Jasso SEARCH "JASSO OBESITY" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. THE IMAGES SHOULD ONLY BE USED TOGETHER WITH THE STORY - NO STAND-ALONE USES. 

Food that contains approximately 6,250 calories that Martin, 48, typically eats in one day, is displayed for a photograph at his home in Mexico City, Mexico, March 12, 2021. Martin says he suffers from a compulsive eating disorder. "All my problems with respect to my overeating started when my mother left us. I couldn't cook anything and I started having big meals on the street such as at buffets, stalls on the street," he said. "I am a member of Overeating Anonymous, with them I try to work very hard to control myself and not overeat." Nutritionist Betzabe Salgado, who works at the Hospital Infantil de Mexico Federico Gomez, calculated the calorie amount. REUTERS/Carlos Jasso SEARCH "JASSO OBESITY" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. THE IMAGES SHOULD ONLY BE USED TOGETHER WITH THE STORY - NO STAND-ALONE USES. 

Food that contains approximately 5,600 calories that Guztavo, 17, used to eat in one day before taking part in a weight loss program, is displayed for a photograph at his family home in San Luis Ayucan, Mexico, February 23, 2021. "My mother was very worried about my health, she took me to the doctor to control my weight and improve my diet," said Guztavo. Nutritionist Betzabe Salgado, who works at the Hospital Infantil de Mexico Federico Gomez, where Guztavo underwent a weight loss program, calculated the calorie amount. REUTERS/Carlos Jasso SEARCH "JASSO OBESITY" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. THE IMAGES SHOULD ONLY BE USED TOGETHER WITH THE STORY - NO STAND-ALONE USES. 

Food that contains approximately 6,000 calories that Saith, 14, used to consume in one day before taking part in a weight loss program, is displayed for a photograph at his family home in Mexico City, Mexico, April 29, 2021. "I was bullied at school by teachers and classmates because I look very big for my age. I was bullied from kindergarten to primary school. I used to feel very sad, frustrated and angry, at some point I didn't want to go to school anymore," said Saith. Nutritionist Betzabe Salgado, who works at the Hospital Infantil de Mexico Federico Gomez, where Saith underwent a weight loss program, calculated the calorie amount. REUTERS/Carlos Jasso SEARCH "JASSO OBESITY" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. THE IMAGES SHOULD ONLY BE USED TOGETHER WITH THE STORY - NO STAND-ALONE USES. 

Food that contains approximately 5,200 calories that Pricila, 18, used to consume in one day before taking part in a weight loss program, is displayed for a photograph at her family home in Acolman, Mexico, January 12, 2021. Pricila had a gastric sleeve surgery, during which a part of the stomach is removed, for weight loss at 16. Realization hit her when aged 15 she weighed 113 kilos, equal to her father. Pricila, who has a metabolic disease, said even with exercise and a nutrition plan her weight loss had stalled, making her a candidate for the surgery. "When I tried to lose weight, there was temptation everywhere," she said. Pricila now weighs 83 kilos. "It was a real feat, especially because I was so used to eating junk food, sweets, all the time." REUTERS/Carlos Jasso SEARCH "JASSO OBESITY" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. THE IMAGES SHOULD ONLY BE USED TOGETHER WITH THE STORY - NO STAND-ALONE USES 

Food, that contains approximately 6,600 calories that Helen, 12, used to consume in one day before taking part in a weight loss program, is displayed for a photograph at her family home in Toluca, Mexico, February 1, 2021. "I was overweight for my age and my parents got very worried. They took me to the hospital for a weight loss program and I was taught how to eat well and healthy. I used to eat a lot of sweets and junk food. Now I eat a lot healthier. My weight at the beginning of the program was 98 kg and I hope to reach my normal weight of 60/65 kg," said Helen. Nutritionist Betzabe Salgado, who works at the Hospital Infantil de Mexico Federico Gomez, where Helen underwent a weight loss program, calculated the calorie amount. REUTERS/Carlos Jasso SEARCH "JASSO OBESITY" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. THE IMAGES SHOULD ONLY BE USED TOGETHER WITH THE STORY - NO STAND-ALONE USES. 

Food that contains approximately 5,850 calories that Carlos, 17, used to consume in one day before taking part in a weight loss program, is displayed for a photograph at his home in Mexico City, Mexico, April 6, 2021. Weighing 137 kilos aged 16, more than twice the recommended weight, Carlos tested positive for COVID-19 in January and spent a month in hospital, much of that in pediatric intensive care. Carlos said he started overeating when pressure intensified at school. Attempts to change his eating habits repeatedly failed. "I woke up and realized that if I don't make a change, I'll always be like this: I'll never mature; always have this body," he said. "Sometimes my body wants something sugary, but I say no." REUTERS/Carlos Jasso SEARCH "JASSO OBESITY" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. THE IMAGES SHOULD ONLY BE USED TOGETHER WITH THE STORY - NO STAND-ALONE USES. 

Food that contains approximately 4,100 calories that Perla, 19, used to consume in one day before taking part in a weight loss program, is displayed for a photograph at her family home in Mexico City, Mexico, February 17, 2021. "I never had problems with my appearance, I think my classmates had more problems seeing my weight and my appearance than I did. I didn't care," said Perla. Nutritionist Betzabe Salgado, who works at the Hospital Infantil de Mexico Federico Gomez, where Perla underwent a weight loss program, calculated the calorie amount. REUTERS/Carlos Jasso SEARCH "JASSO OBESITY" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. THE IMAGES SHOULD ONLY BE USED TOGETHER WITH THE STORY - NO STAND-ALONE USES.