Do you watch your citric acid intake before/after taking stimulant medication?

I've seen some sources say that too high or low of pH levels can impact how well a stimulant is absorbed into your system. It seems the biggest source in regular diets, especially American diets, is citric acid. I enjoy many citric heavy juices, and also drink a lot of soda. Do you guys watch your citric acid intake about an hour before and after you take your medication? Do you notice an impact either way? I drink a lot of juice/soda, so I would have to adjust my diet quite a bit (granted, probably not the worst thing).