Another example: whole grain rice is not fully absorbed due to phytic acid (phytates) that actually interferes with the body's absorption of minerals, specifically iron, zinc, magnesium, and calcium.
This brought me back to re-reading on phytates again (coz I remember ever reading about their 'anti-nutrients' property).
Phytates have their benefits and so to weigh risks vs benefits accordingly (hahaha, coz I am not willing to give up on my grains, beans, seeds, etc):
Source:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9855079/