Suppose A new study published in the Journal of Nutrition found that individuals who consume at least two servings of oily fish per week have a lower risk of heart disease. Oily fish such as salmon, mackerel, and sardines are rich in omega-3 fatty acids, which are known to have heart-protective effects.
Can we infer that "Eating oily fish can increase the risk of heart disease."? Yes, no, or maybe?