Dr Zoe Harcombe said the official guide is 'not evidence-based'.
'This will be the largest study that’s ever tested the impact of weight loss on cancer.'
'It is farcical to suggest this will have any positive impact on people's diet.'
'I do it in my living room.'
'We should place more emphasis on encouraging people with heart disease to eat more healthy foods, and perhaps focus less on avoiding unhealthy foods.'