Answer

In Jain Dharma, swallowing one’s own saliva is normal and not considered a violation. It is an involuntary bodily process.

But deliberately swallowing or consuming body fluids in a way that involves harm, impurity, or disrespect to life is not considered Jain conduct.

Explanation

Jain ethics places great emphasis on:

• Ahimsa — non-violence
• Sanyam — self-restraint
• Shuddhi — purity in conduct and intention

So the key point is intention and harm:

• Own saliva: natural, unavoidable, not a problem.
• Another person’s or animal’s body fluids: generally not in line with Jain restraint, especially if it involves harm, impurity, or careless behavior.
• Medical or unavoidable situations: Jain teaching looks carefully at intent and necessity.

Spiritual Understanding

In Jainism, purity is not only physical. It is also about:

• carefulness in action
• purity of intention
• minimizing harm to living beings

So Jain conduct is not based on extreme fear of the body, but on disciplined awareness and non-violence.

Takeaway

Swallowing your own saliva is fine. Deliberately consuming body fluids in a harmful or careless way is not aligned with Jain values.

If you want, I can also explain this from the view of ahimsa, cleanliness, and Jain monastic discipline.