My, 21, gained over 40 kg in two years, reaching 111 kg, attributed to a lifestyle of late-night eating, staying awake until 2-3 h, and compensating with daytime sleep.

Coach Pep Guardiola has warned his players about the risk of gaining weight during the Christmas holiday break.

Ngoc, 20, weighing 97 kg, suffered from severe obesity which led to grade three fatty liver and progressed to hepatitis.

Truong, 31, gained 30 kg in 1.5 years. Doctors diagnosed him with obesity, diabetes, psoriasis, and hypertension, necessitating weight loss to manage all four conditions.

The 5:2 diet is an intermittent fasting method that supports weight loss by restricting calorie intake during specific periods.