Possible Clues:

• Marketing term involving supposed nutritional benefits
• Marketing term for nutrient-rich fare, or what the answers to the starred clues are
• Marketing term often disputed by dietitians
• Foolish New Yorker tackling salesperson about so-called health product?
• Goji berries or black garlic, some say
• Cook soup of red tomatoes, perhaps
• Kale or quinoa, it's said
• Source of supposed extraordinary health benefits