In Europe, food manufacturers have signed up to ‘responsibility pledges’, promising no added sugar, preservatives, artificial colours or flavours and not to target children. So why are they using tactics banned in the West in the developing world? There, they have created ultra-low-cost products with higher levels of salt, sugar and saturated fats. Filmed in Brazil, India and France, we investigate the new tactics of brands like Coca-Cola, McDonald’s and Domino’s Pizza.