Four days into the latest challenge, irritability is rising as the effects of the new diet kick in. Comedian and novice cook Joe Pasquale is on unfamiliar territory in the kitchen, while reality star Gemma Collins continues her quest to find a farmer husband - this time in the chicken sheds. As they learn to appreciate the natural animal and dairy fats on the farm, the celebrities learn to make cheese and butter from scratch, and ex MP Ann Widdecombe discovers what really goes into the low fat spreads she eats every day.