A group met at the Marquette Commons on Saturday to March Against Monsanto.
Monsanto is a company that genetically engineers seed.
In Marquette, protestors held up signs reading "GMO's Have No Benefits for You or the Environment" and "Label GMO Food".
The protesters said genetically modified organisms are endangering the health, environment, and economic welfare of the entire world.
Their hope is that more people support their local farmers markets where fresh, unaltered food, is available.