* Sodium (Na) and Chlorine (Cl), the elements that make up table salt, are both essential minerals for human health.
* While consuming too much sodium can lead to health problems, sodium itself isn't poisonous.
* Chlorine is also not poisonous in the form found in table salt.
It's important to differentiate between elements and their compounds. While some elements can be poisonous, their compounds might be essential or even harmless.