Old/new food regimen

• Trendy plan that doesn't explain why Fred Flintstone was overweight
• Extremely retro food regimen?
• Faddish food regimen
• It offers courses of ancient history
• Wild fruit is a feature of it
• Atkins alternative
• Its repasts are from the past
• "Caveman" food regimen
• Regimen that requires early meals?

Wiktionary Word definitions in Wiktionary
n. A paleolithic diet; a nutritional plan based on the presumed ancient diet of wild plants and animals that various hominid species habitually consumed during the Paleolithic.