And I really realized that's why soy sauce was salty.
We just cannot see it in soy sauce but so many salt in it.
This is from Mayo Clinic
You've been trying to eat less sodium — just a pinch of table salt on your baked potato and a dash on your scrambled eggs. But a pinch here and a dash there can quickly add up to unhealthy levels of sodium. Consider that just one teaspoon of table salt has 2,325 milligrams (mg) of sodium. And it's not just table salt you have to worry about. Many processed and prepared foods already contain lots of sodium — and it's these foods that contribute the most sodium to your diet.
If you're like many people, you're getting far more sodium than is recommended, and that could lead to serious health problems. See how sodium sneaks into your diet and ways you can shake the habit.
Sodium: Essential in small amountsYour body needs some sodium to function properly because it:
- Helps maintain the right balance of fluids in your body
- Helps transmit nerve impulses
- Influences the contraction and relaxation of muscles
But if for some reason your kidneys can't eliminate enough sodium, the sodium starts to accumulate in your blood. Because sodium attracts and holds water, your blood volume increases. Increased blood volume makes your heart work harder to move more blood through your blood vessels, which increases pressure in your arteries. Such diseases as congestive heart failure, cirrhosis and chronic kidney disease can make it hard for your kidneys to keep sodium levels balanced.
Some people's bodies are more sensitive to the effects of sodium than are others. If you're sodium sensitive, you retain sodium more easily, leading to fluid retention and increased blood pressure. If this becomes chronic, it can lead to heart disease, stroke, kidney disease and congestive heart failure.