Table 1.

Types of different natural and synthetic flavoring agents.

Name	Natural Flavoring Agents	Synthetic Flavoring Agents
Definition	Natural flavoring agents are substances that are extracted from plants, herbs, spices, and microorganisms. [45]	Synthetic flavoring agents are substances that are similar to natural agents. [45]
Type	Herbs and spices: Garlic, onion [46,47]	Artificial: Artificial smoke flavor or synthetic versions of natural flavors [48]
	Yeast Extract [49,50]	Flavor enhancer: Monosodium glutamate (MSG)
	Fermented products: Miso, tamari [51]
	Vegetable Extract: Tomatoes, mushrooms [45,52]
Cost	Expensive [45]	Less expensive [45]