What Not to Eat: Story, Cast and Series Facts

Story and premise

In What Not to Eat, award-winning scientist Professor Tim Spector will be helping the UK navigate the baffling world of ultra-processed foods (UPFs), thought to directly contribute to the UK's rising obesity rates.

As well as the usual junk food and ready meal suspects, Professor Spector will highlight how seemingly healthy ‘low-fat', ‘low calorie' options are hiding some ultra processed health horrors. He'll then be offering nutritious alternatives and take us back to basics, showing us what to shop, cook and eat in a bid to transform the nation's health.

Series details

• Title: What Not to Eat
• Format: Documentary
• Language: English
• Genres: Food
• Premiere date: 2026-01-06
• Status in TVmaze: Running
• Network listed by TVmaze: Channel 4
• Network country: United Kingdom
• Typical episode runtime: 60 minutes
• TVMaze ID: 86815
• TVDB ID: 472338

Cast and credited roles

• Tim Spector — Professor Tim Spector
• Kandi Ejiofor — Dr Kandi Ejiofor

Seasons in the TVmaze catalogue

• Season 1: premiered 2026-01-06; final listed air date 2026-01-27; episode order: 4.

Source and licence

Adapted from What Not to Eat on TVmaze. The synopsis is reproduced as plain text; catalogue facts, cast and season records are selected and reformatted. This adapted text is available under CC BY-SA 4.0, following the TVmaze API licence. Network and web-channel credits identify the service listed in this source; they do not establish current streaming availability.