Semen is a “viscous, creamy, slightly yellowish or greyish” substance made up of spermatozoa — commonly known as sperm — and a fluid called seminal plasma.

In other words, semen contains two separate components: the sperm and the fluid.

Sperm — about 1% to 5% of the semen — are the tadpole-like reproductive cells that contain half of the genetic information to create human offspring.

The seminal plasma fluid, which is mostly water, makes up the rest.

Is it actually safe to ingest?

For the most part, yes, the components that make up semen are safe to ingest. Swallowed semen is digested in the same way as food.

However, in very rare circumstances, some people might discover that they’re allergic to semen. This is also known as human seminal plasma hypersensitivity (HSP).

Though rare, this sensitivity is something to be aware of in case you experience an allergic reaction.

Is it as protein-rich as everyone says?

Despite its reputation for being a rich source of protein, you would likely have to consume gallons of semen to see any dietary health benefits.