When we talk about microplastics inside humans, it’s easy to focus on where particles have eventually been detected.
But perhaps another important question is:
What happens before they get there?
Food and drinking water are potential routes of microplastic exposure, making the gastrointestinal tract an important area of research.
And that’s where the ability of fulvic acid to interact with microplastics becomes particularly interesting.
Could a supplement that binds to microplastics may remove them from our body?
Laboratory chemistry gives us a reason to investigate the possibility, but human evidence is still needed.
Think About the Problem Differently
There are at least two potential strategies for dealing with an unwanted environmental substance.
One is removing it after it has accumulated.
Another is reducing how much is absorbed in the first place.
The second possibility makes gastrointestinal research particularly interesting.
If something could bind or otherwise alter the behaviour of ingested microplastic particles before absorption, theoretically it could influence their biological fate.
Why Fulvic Acid?
Fulvic acid is a naturally occurring component of humic substances.
It has complex chemical properties and can interact with numerous substances in its environment.
Experimental work has shown that fulvic acid can interact with microplastic surfaces.
The question is whether those interactions have any meaningful effect under human physiological conditions.
At present, we don’t know.
The Research We Need Next
Rather than jumping immediately to “microplastic detox”, useful research would investigate:
Binding under gastrointestinal conditions.
Changes in particle aggregation.
Changes in intestinal absorption.
Changes in excretion.
Then, eventually, controlled human trials.
The idea that a supplement that binds to microplastics may remove them from our body is fascinating precisely because the laboratory interaction provides a mechanism worth testing.
But for now, mechanism is where the evidence sits.