High showed no clear difference in arrhythmias compared with low long‐chain omega‐3 fats (low certainty).
It is very uncertain whether high changes harms: bleeding compared with low long‐chain omega‐3 fats (very low certainty).
It is very uncertain whether high changes harms: pulmonary embolus or DVT compared with low long‐chain omega‐3 fats (very low certainty).
It is very uncertain whether higher changes all allergic disease ‐ infant incidence compared with lower PUFA intake (very low certainty).
It is very uncertain whether higher changes all allergic disease ‐ childhood prevalence compared with lower PUFA intake (very low certainty).
It is very uncertain whether higher changes asthma ‐ childhood prevalence compared with lower PUFA intake (very low certainty).
It is very uncertain whether higher changes dermatitis/eczema ‐ childhood prevalence compared with lower PUFA intake (very low certainty).
It is very uncertain whether higher changes allergic rhinitis ‐ childhood prevalence compared with lower PUFA intake (very low certainty).
It is very uncertain whether higher changes food allergy ‐ childhood prevalence compared with lower PUFA intake (very low certainty).
Higher showed no clear difference in asthma ‐ infant incidence compared with lower PUFA intake (low certainty).
It is very uncertain whether higher changes dermatitis/eczema ‐ infant incidence compared with lower PUFA intake (very low certainty).
It is very uncertain whether higher changes allergic rhinitis ‐ infant incidence compared with lower PUFA intake (very low certainty).
It is very uncertain whether higher changes food allergy ‐ infant incidence compared with lower PUFA intake (very low certainty).
It is very uncertain whether higher changes all allergic disease ‐ childhood incidence compared with lower PUFA intake (very low certainty).
It is very uncertain whether higher changes asthma ‐ childhood incidence compared with lower PUFA intake (very low certainty).
It is very uncertain whether higher changes dermatitis/eczema ‐ childhood incidence compared with lower PUFA intake (very low certainty).
It is very uncertain whether higher changes food allergy ‐ childhood incidence compared with lower PUFA intake (very low certainty).