“…We excluded some data on arthritis, 47 asthma, 47 cancer, 40,47,56,58,75 chronic obstructive pulmonary disease (COPD) and other chronic respiratory conditions, 47 CVD, 76 diabetes, 40,47,75 hypertension, 40,75 miscarriage, 74 and stroke 40,75 since none of the above-mentioned criteria for retaining comparisons ((1)–(4), section “Methods”) applied to them. The predetermined threshold to perform meta-analysis (⩾2 non-overlapping weighted studies on the same health condition) was met for eleven health conditions (in order of appearance): heart attacks, 47,55,67 hypertension, 13,31,37,38,54,60,66,72,73 stroke, 47,73 asthma, 37,38,43,54 –56,58,60,66,67 chronic kidney diseases, 47,60 diabetes, 31,37,38,43,46,52,53,60,64,66,73 arthritis, 13,28,37,…”