Mo Gilligan's fried chicken diet leads to weight gain and mental health struggles

In a documentary released on Netflix, comedian Mo Gilligan undertook a 28-day challenge of eating only fried chicken, starting in south London and moving to the US. At the end of the experiment, he gained weight and faced increased risks of Type 2 diabetes, particularly due to his family history. Additionally, Gilligan reported significant negative impacts on his mental health, including feelings of depression. The documentary also explores the intensive poultry farming industry and the unhealthy ingredients often found in fast food.

Mo Gilligan's fried chicken diet leads to weight gain and mental health struggles
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science Published Aug 5, 2026

Topic overview

In brief

  • Mo Gilligan consumed only fried chicken for 28 days as part of a documentary project.
  • He experienced weight gain and negative mental health effects during the diet.
  • The experiment highlights the risks associated with fast food consumption and intensive poultry farming.

Summary

In a recent documentary, Mo Gilligan, a 38-year-old comedian, undertook a month-long challenge of consuming only fried chicken for every meal. This experiment, titled 'Big Chicken: A Fast Food Conspiracy,' was released on Netflix and produced by Louis Theroux's Mindhouse production company. The project began in south London and later moved to the United States, where Gilligan explored the fast food industry and its impact on health. Throughout the 28 days, he consumed a staggering 84 portions of fried chicken, which is known for being high in unhealthy fats, salt, and calories.

At the end of the experiment, Gilligan underwent a health check with Dr. Enam Abood, who revealed the negative consequences of his diet. He gained approximately 3 kilograms (about 6.6 pounds) and experienced an increase in waist size. The doctor warned him about the heightened risk of developing Type 2 diabetes, especially since he has a family history of the condition. Gilligan's mother has diabetes, which adds to his genetic predisposition. The doctor described Type 2 diabetes as a 'silent assassin' that can lead to severe health complications, including blindness and heart issues.

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Updated Aug 5, 2026

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