Not only are we made of fundamental particles, we also produce them and are constantly bombarded by them throughout the day
https://www.symmetrymagazine.org/article/the-particle-physics-of-you
Yes, this does include anti-matter.
Especially if you like and eat bananas. A banana makes one positron or anti-matter particle per hour.
The average banana (rich in potassium) produces a positron roughly once every 75 minutes.
I am an anti-matter factory on my banana bingeing days.
https://www.quantumdiaries.org/2009/07/21/positrons-from-bananas/
Composition of the human body