Spinach and tofu
When calcium in tofu combines with oxalic acid in spinach, it can form a compound (stone) that is not absorbed in the body. Additionally, this can also interfere with the absorption of iron and calcium.
It is best to avoid taking these two together.
Orange juice and bread
Consuming orange juice and bread together can cause digestive issues and nutrient absorption problems. The acidity of orange juice stimulates stomach acid secretion, and the carbohydrates in bread can cause discomfort in an acidic environment.
Additionally, the acidity of orange juice interferes with the action of amylase enzymes that break down bread starch, which can make starch digestion more difficult.
Tomato and sugar
Tomatoes are rich in vitamin C, while sugar inhibits the absorption of vitamin C. Consuming these two together can reduce the absorption of nutrients from tomatoes, so it is advisable to avoid taking them together.
Banana and milk
Consuming bananas and milk together may slow digestion. Especially if taken on an empty stomach, it can put strain on the stomach, so you should be more careful about eating them on an empty stomach after waking up.