Consider this example Re: Magnesium deficiency.
“Low levels of magnesium have been associated with a number of chronic diseases, such as Alzheimer’s disease, insulin resistance and type-2 diabetes mellitus, hypertension, cardiovascular disease (e.g., stroke), migraine headaches, and attention deficit hyperactivity disorder (ADHD).”
Reference: Nutrients 2015, 7, 8199-8226; doi:10.3390/nu7095388
This statement is true, but the authors’ focus on magnesium has them missing the bigger picture, which is summarized here and says the same thing, only much more:
A simple rewording is more to the point and presupposes my testable assumption that nutrient deficiencies are always plural:
Chronic diseases are correlated with numerous nutrient deficiencies including magnesium…