We didn't need to answer the question: does folic acid prevent or not prevent?

Plus, studies suggest that the ellagic acid in berries can prevent or slow skin cancer.

We now know that the ascorbic acid in the juice prevents discoloration.

Some lemon juice is often added to preserve the fruit's original color, as the citric acid prevents oxidation.

And the birth defects that folic acid can prevent start to form in the first 6 weeks of pregnancy.

Tranexamic acid prevents enzymes in the body from breaking down blood clots.

The mechanisms and reasons why folic acid prevents birth defects is unknown.

Citric acid as opposed to any other acid will prevent bacterial growth.

These fatty acids also prevent the blood from clotting easily.

So, he said, "there is not much commercial interest," in seeing if folic acid can prevent heart disease.