Is it scientific to eat shallots mixed with tofu?

Fried tofu with scallion and fried tofu with scallion are some dishes that many families often eat. In fact, this way of eating is unscientific, because tofu is rich in nutrients such as protein and calcium, and onions contain a lot of oxalic acid. When tofu and onion are combined, the calcium in tofu and oxalic acid in onion combine to form white precipitated calcium oxalate, which will destroy the calcium in tofu. Long-term consumption of fried bean curd with scallion, fried bean curd with scallion and other dishes will cause calcium deficiency in human body, which is easy to cause calcium deficiency and leg muscle beating.