Folic acid is the synthetic form of the B vitamin folate, which is found naturally in green vegetables, like spinach and broccoli, in oranges and orange juice, and dried beans and peas, among other foods.

• 叶酸是B族维生素叶酸酯的合成形式，后者以天然形式存在于菠菜，椰菜等绿色蔬菜，橘子，橘汁，干菜豆，干豌豆和其他一些食物中。