I recently read Patients less likely to trust and listen to overweight doctors, which mentioned Mark Sisson. Sisson and Robb Wolf are good representatives for the Paleo Diet. Some are bad representatives for the Paleo Diet due to poor physical condition or abrasive personality.
The Paleo Diet gets flak from scientists like Marlene Zuk and Christina Warinner and it was criticised in The Paleo Diet (hat-tip to Melissa McEwen).
The thing is that people don't need to eat a Palaeolithic diet to be 90% free from degenerative diseases. A mere 150 years ago, Mid-Victorian Brits who didn't die in childhood managed to live to a ripe old age, as cheap sugar imports, junk food, labour-saving devices and horseless carriages hadn't yet been invented.
Just Eat Real Food.