There is no evidence that PUFA supplementation in infancy has an effect on infant or childhood allergy , asthma , dermatitis/eczema or food allergy .
However , the quality of evidence was very low .
There was insufficient evidence to determine an effect on allergic rhinitis
BACKGROUND Early dietary intakes may influence the development of allergic disease .
It is important to determine if dietary polyunsaturated fatty acids ( PUFAs ) given as supplements or added to infant formula prevent the development of allergy .
OBJECTIVES To determine the effect of higher PUFA intake during infancy to prevent allergic disease .
Maternal fish oil supplementation during lactation may adversely affect long-term blood pressure, energy intake, and physical activity of 7-year-old boys.
Early nutrition may program obesity and cardiovascular risk later in life , and one of the potential agents is ( n-3 ) long-chain PUFA ( LCPUFA ) . In this study , our objective was to examine whether fish oil ( FO ) supplementation during lactation affects  blood pressure and body composition of children . Danish mothers ( n = 122 ) were r and omized to FO [ 1.5 g/d ( n-3 ) LCPUFA ] or olive oil ( OO ) supplementations during the first 4 mo of lactation . The trial also included a high-fish intake reference group ( n = 53 ) . Ninety-eight children were followed-up with blood pressure and anthropometry measurements at 7 y. Diet and physical activity level ( PAL ) were assessed by 4-d weighed dietary records and ActiReg . The PAL value was 4 % lower ( P = 0.048 ) and energy intake ( EI ) of the boys was 1.1 + /- 0.4 MJ/d higher ( P = 0.014 ) in the FO group than in the OO group . Starch intake was 15 + /- 6 g/d higher ( P = 0.012 ) in the FO group , but there were no other differences in diet . Body composition did not differ between the r and omized groups with or without adjustment for starch intake , EI , and PAL . FO boys had 6 mm Hg higher diastolic and mean arterial blood pressure than OO boys ( P < 0.01 ) , but girls did not differ . Within the r and omized groups , blood pressure was not correlated with maternal RBC ( n-3 ) LCPUFA after the intervention , but PAL values were ( r = -0.277 ; P = 0.038 ) . We previously found higher BMI at 2.5 y in the FO group , but the difference did not persist . The differences in blood pressure , EI , and PAL , particularly among boys , suggest that early ( n-3 ) LCPUFA intake may have adverse effects , which should be investigated in future studies
There is no evidence that PUFA supplementation in infancy has an effect on infant or childhood allergy , asthma , dermatitis/eczema or food allergy .
However , the quality of evidence was very low .
There was insufficient evidence to determine an effect on allergic rhinitis
BACKGROUND Early dietary intakes may influence the development of allergic disease .
It is important to determine if dietary polyunsaturated fatty acids ( PUFAs ) given as supplements or added to infant formula prevent the development of allergy .
OBJECTIVES To determine the effect of higher PUFA intake during infancy to prevent allergic disease .