2. Citrus fruits
It might seem healthy to start your day with a glass of fresh-squeezed orange juice, but it’s not. Citrus fruits are very acidic, and eating them with or right after the main meal increases acid production. This can lead to unpleasant digestive problems like heartburn, a feeling of fullness in the stomach, and a slowing down absorption of nutrients. Just wait a few minutes after your meal to drink your juice.