By the year 2025, one-third of people on earth will be obese, according to a recent report by the World Obesity Federation. Canadians are no exception — more than 20% of us are obese. We’ve always been told the solution is just to eat less and move more. But the latest scientific research is turning that assumption on its head.

What can science can tell us about why we’re getting bigger — and how we might stop it? We discover why our genes make it harder for some of us to control our weight, and how easy it is to trick our brains into healthy eating. We also learn what we can do to change our gut bacteria to help keep us thin, and we follow the trial of an injection that could cure obesity.

MORE: Five surprisingly simple ways to maintain a healthy weight, according to new research
 

 

Credits (Click to expand)

Presented by

CHRIS BAVIN

With Thanks To

AMRA MEDICAL AB

Academic Consultant For The Open University

DR JOAN SIMONS

Runners

BEN LEVETT

JAMES NIX

SOPHIE PHILLIPS

JOEL WISDOM-PETERS

Data Wrangling

JOHNNY MELVILLE

Camera

MARCO CERVI

ANDREW FLEMING

TOM HAYWARD

TOBY WILKINSON

Camera Assistant

WILL ANTHILL

Sound

CHRIS YOULE-GRAYLING

PAUL MILLER

JAMES NIGHTINGALE

Dubbing Mixer

NICK DAVIS

JACK CREITH

Graphics

SERIOUS

Colourist

BEN MULLEN

Online editor

ANDREW BERRY

Developed By

SAMANTHA LEWIS

Researcher

YASMIN MORGAN-GRIFFITHS

Assistant Producers

ZOE MILNE

CAILEAN WATT

Production Management Assistants

PAIGE BERESFORD

ERICA LENNIE

STEPHANIE SYMINGTON

Production Co-ordinator

CLAIRE MacDONALD

Production Manager

NATALIE ADAMS

Production Executive

JACKIE WILLIAMSON

Commissioning Editor

DIENE PETTERLE

Film Editor

ANDREW HASSENRUCK

LEE SUTTON

Executive Producer

PAUL OVERTON

Produced & Directed By

DECLAN HEALY

BBC Studios

The Science Unit Scotland

albert+ sustainable production

© BBC MMXVIII