Wild fruit is a feature of it

• Regimen that requires early meals?
• "Caveman" food regimen
• Its repasts are from the past
• Extremely retro food regimen?
• Set of courses from prehistoric times
• It can help you eat like your ancestors
• Program with ancient history courses?
• Old/new food regimen

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.