Specifically, the study's findings suggest that phosphates may actually promote tumor development and accelerate tumor growth. That can make skin cancer a more common, rapidly progressing, and deadly disease than it was for previous generations. Additionally, human consumption of phosphates in the form of food additives has skyrocketed in the last four decades, which could be a further link to heightened skin cancer rates in recent years.
Phosphate isn't usually a bad thing — it's necessary for healthy bone formation — but the research suggests we're consuming far too much of it, which may be making us sick. The average American consumes about 1,334 milligrams of phosphates per day, even though the RDA is only 700 mg. With new information about additives and cancer coming to light all the time, it's not a bad idea to take this as an opportunity to start reading your labels carefully, and making sure you get the amount of phosphate you need without overdosing.