i just need some checking on my sentences if there is something wrong. thank you

Ranchers and farmers are competitively trying to reduce their cost in many ways. This strategy reduces the quality of the product which brings problem to the food. Each year, many Americans are dying from E. coli bacteria, salmonella and other deadly bacteria in food.

3 answers

Both "product" and "product" should be plural.

The rest is o.k.
thanks
You're welcome.