A large French study tracking more than 100,000 people over a decade has found that higher consumption of certain food preservatives—commonly found in processed foods and drinks—is linked to a ...

Iron (Fe) is a vital micronutrient for plants, which is required for processes such as photosynthesis and enzyme activity.

Phosphorus is crucial for crop growth. But too little can lower crop yields, and too much can lead to pollution downstream.

If phosphorus stayed locked in the soil, farmers would have wasted money on fertilizer they didn’t need. And excess ...