Now there is a saying that babies can't eat salt, which may be incorrect. The maintenance of normal concentration in children's cells and the maintenance of electrolytes in surrounding blood are related to sodium. If the obvious low sodium can lead to cell edema and cause some dysfunction, it may have some adverse effects on the nervous system and the body.
However, too much salt may also cause some harm to the baby, so when you drink a little physiological saline or a lot of physiological saline, only some sodium brought in is in line with the physiological condition of the body, so don't be too nervous.