Effect of fresh fruit consumption on lung function and wheeze in children

Abstract

Abstractcorbate might protect against the lung damage caused by cigarette smoking. 5 However, the Background -Fresh fruit consumption and vitamin C intake have been associated effects are not confined to smokers 1 3 and in one study appeared to be stronger in subjects with improved lung function in adults. Whether this is due to enhancement of lung who had never smoked and to be present in young adults, suggesting that other biological growth, to a reduction in lung function decline, or to protection against broncho-mechanisms may be required to explain reduced ventilatory function in subjects with a spasm is unclear. Methods -In a cross-sectional school low fruit intake.2 Strachan suggested that the relationship in adults might be an indirect rebased survey of 2650 children aged 8-11 from 10 towns in England and Wales the flection of an influence of diet on lung growth in childhood. In adults it has also been sugmain outcome measure was forced expiratory volume in one second (FEV 1 ) gested that any effect may be much greater amongst asthmatic subjects.1 standardised for body size and sex. Exposure was assessed by a food frequency We have examined the cross-sectional relationship between reported frequency of fresh questionnaire to parents and by measurement of plasma levels of vitamin C in a fruit, salad, and green vegetable consumption and lung function in 9-11 year old children subsample of 278 children. Results -FEV 1 was positively associated from 10 British towns. In addition we have examined the interactions with wheeze, and with frequency of fresh fruit consumption. After adjustment for possible confounding the relationship between plasma vitamin C levels and lung function in a subsample. We variables including social class and passive smoking, those who never ate any fresh have focused on fresh fruit because it is both an important source of vitamin C and may be fruit had an estimated FEV 1 some 79 ml (4.3%) lower than those who ate these more important in accounting for individual differences in intake, and because of the eviitems more than once a day (95% CI 22 to 136 ml). The association between FEV 1 and dence linking infrequent fresh fruit consumption to reduced lung function in adults. restricted to subjects who wheeze and to selected. Within each school 50 children aged identify the specific nutrient involved. Department of9-11 were invited to participate.

Diet and 20-year chronic obstructive pulmonary disease mortality in middle-aged men from three European countries

“…These findings were supported by a plausible biological mechanism, ie an anti-inflammatory effect of the n-3 fatty acids abundantly present in fish oils. In accordance with our findings, all more recent epidemiological studies observed no association of fish intake with COPD related outcomes (Cook et al, 1997;Fluge et al, 1998;Tabak et al, 1999Tabak et al, , 2001aButland et al, 2000). It is not likely that this is due to a higher level of fish intake in the earlier studies.…”

“…Cross-sectional studies published in 1990 and 1994 suggested an inverse association between fish consumption and COPD related outcomes . However, all cross-sectional studies published in later years reported negative findings (Cook et al, 1997;Fluge et al, 1998;Tabak et al, 1999Tabak et al, , 2001aButland et al, 2000). In the only individuallevel longitudinal study, no association of fish consumption with 25 y incidence of chronic lung disease was observed (Miedema et al, 1993).…”

Total dietary antioxidant capacity and lung function in an Italian population: a favorable role in premenopausal/never smoker women

“…The differences in pulmonary volumes observed between the fifth and the first quintile of TAC were comparable with those reported by others on antioxidant foods (Strachan et al, 1991;Cook et al, 1997;Carey et al, 1998;Butland et al, 2000;Kelly et al, 2003;Nettleton et al, 2009) or vitamins (Schwartz and Weiss, 1994a;Britton et al, 1995;Tabak et al, 1999;Schünemann et al, 2001a, b;Charles et al, 2010) or observed in subjects who developed cardiovascular disease (Schroeder et al, 2005). In particular, the þ 83.4 ml difference in FEV 1 associated with a higher intake of TAC in never smoker premenopausal women was equivalent to an improvement in pulmonary age of 3.3 years.…”

“…A consistent body of evidence shows a link between consumption of antioxidant vitamins (Schwartz and Weiss, 1994a;Britton et al, 1995;Tabak et al, 1999;Schünemann et al, 2001a, b;Charles et al, 2010), antioxidant-rich foods (Strachan et al, 1991;Cook et al, 1997;Carey et al, 1998;Butland et al, 2000;Kelly et al, 2003;Nettleton et al, 2009), omega-3 polyunsaturated fatty acids and fish (Schwartz and Weiss, 1994b;Shahar et al, 1994;Sharp et al, 1994;Charles et al, 2010) and better pulmonary function.…”

A theoretical basis for investigating ambient air pollution and children's respiratory health.

“…Dietary intake of fruits and vegetables may therefore be important in protecting the airway from oxidant and radical air pollutants (48)(49)(50)(51). Epidemiologic studies have shown that a high intake of fruits and vegetables is associated with increased lung function and decreased respiratory symptoms (48)(49)(50)(51).…”