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Bariatric surgery does not appear to affect women's breast-milk composition

(2018) JOURNAL OF NUTRITION. 148(7). p.1096-1102
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Abstract
Background: The breast-milk composition in the first 6 wk postpartum of women who have undergone bariatric surgery (BS) is unknown. Objective: The aim of this study was to examine 1) the breast-milk macronutrient and vitamin A composition in women who had and who had not undergone BS and 2) the impact of maternal diet on the breast-milk composition. We hypothesized that the milk of women who had undergone BS would be less energy dense and have a lower vitamin A concentration than that of other women. Methods: A multicenter prospective substudy was conducted at 2 university hospitals. Breast-milk samples were collected from 24 normal-weight [NW; mean +/- SD body mass index (BMI; kg/m(2)): 21.5 +/- 1.7; mean +/- SD age: 29 +/- 6 y], 39 overweight (OW; BMI: 26.9 +/- 1.5; aged 29 +/- 5 y), and 12 obese women (BMI: 35.0 +/- 5.7; aged 29 +/- 5 y) as well as from 11 women who had undergone BS (BMI: 28.0 +/- 4.4; aged 30 +/- 4 y) from day 3 until week 6 of lactation. Milk energy and macronutrients (Human Milk Analyzer; Miris) and vitamin A concentrations (iCheck Fluoro; BioAnalyt) were determined at the end of each week. Maternal diet (food-frequency questionnaire) and physical activity (Kaiser Physical Activity Survey) were measured during the third trimester of pregnancy and on day 3 or 4 and during week 6 of lactation. Statistical analyses include 1-factor ANOVA, Spearman and Pearson correlations, and multiple linear regression. Results: In all women, a weekly increase in milk energy, total fat, and total carbohydrates was seen, whereas a weekly decrease in proteins and vitamin A was found during the first 2 wk of lactation, followed by a stable concentration of all nutrients. At week 4, milk protein concentrations were higher in women who had undergone BS (14 g/L) compared with NW (8 g/L; P = 0.005) and OW (9 g/L; P = 0.019) women. At week 5, milk carbohydrate concentrations were higher in women who had undergone BS (74 g/L) compared with NW women (68 g/L; P = 0.042). Conclusions: Breast milk of women who have undergone BS appears to be adequate in energy, macronutrients, and vitamin A during the first 6 wk of lactation. This supports the conclusion that breast feeding should not be discouraged in this group of women.
Keywords
MATERNAL GASTRIC BYPASS, PHYSICAL-ACTIVITY SURVEY, PREGNANT-WOMEN, MACRONUTRIENT COMPOSITION, VITAMIN-A, PROSPECTIVE COHORT, LIFE-STYLE, DEFICIENCY, VALIDATION, IMPACT, breast milk, macronutrients, vitamin A, maternal diet, bariatric surgery

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Citation

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MLA
Jans, Goele et al. “Bariatric Surgery Does Not Appear to Affect Women’s Breast-milk Composition.” JOURNAL OF NUTRITION 148.7 (2018): 1096–1102. Print.
APA
Jans, G., Devlieger, R., De Preter, V., Ameye, L., Roelens, K., Lannoo, M., Van der Schueren, B., et al. (2018). Bariatric surgery does not appear to affect women’s breast-milk composition. JOURNAL OF NUTRITION, 148(7), 1096–1102.
Chicago author-date
Jans, Goele, Roland Devlieger, Vicky De Preter, Lieveke Ameye, Kristien Roelens, Matthias Lannoo, Bart Van der Schueren, Johan Verhaeghe, and Christophe Matthys. 2018. “Bariatric Surgery Does Not Appear to Affect Women’s Breast-milk Composition.” Journal of Nutrition 148 (7): 1096–1102.
Chicago author-date (all authors)
Jans, Goele, Roland Devlieger, Vicky De Preter, Lieveke Ameye, Kristien Roelens, Matthias Lannoo, Bart Van der Schueren, Johan Verhaeghe, and Christophe Matthys. 2018. “Bariatric Surgery Does Not Appear to Affect Women’s Breast-milk Composition.” Journal of Nutrition 148 (7): 1096–1102.
Vancouver
1.
Jans G, Devlieger R, De Preter V, Ameye L, Roelens K, Lannoo M, et al. Bariatric surgery does not appear to affect women’s breast-milk composition. JOURNAL OF NUTRITION. 2018;148(7):1096–102.
IEEE
[1]
G. Jans et al., “Bariatric surgery does not appear to affect women’s breast-milk composition,” JOURNAL OF NUTRITION, vol. 148, no. 7, pp. 1096–1102, 2018.
@article{8613750,
  abstract     = {Background: The breast-milk composition in the first 6 wk postpartum of women who have undergone bariatric surgery (BS) is unknown. 
Objective: The aim of this study was to examine 1) the breast-milk macronutrient and vitamin A composition in women who had and who had not undergone BS and 2) the impact of maternal diet on the breast-milk composition. We hypothesized that the milk of women who had undergone BS would be less energy dense and have a lower vitamin A concentration than that of other women. 
Methods: A multicenter prospective substudy was conducted at 2 university hospitals. Breast-milk samples were collected from 24 normal-weight [NW; mean +/- SD body mass index (BMI; kg/m(2)): 21.5 +/- 1.7; mean +/- SD age: 29 +/- 6 y], 39 overweight (OW; BMI: 26.9 +/- 1.5; aged 29 +/- 5 y), and 12 obese women (BMI: 35.0 +/- 5.7; aged 29 +/- 5 y) as well as from 11 women who had undergone BS (BMI: 28.0 +/- 4.4; aged 30 +/- 4 y) from day 3 until week 6 of lactation. Milk energy and macronutrients (Human Milk Analyzer; Miris) and vitamin A concentrations (iCheck Fluoro; BioAnalyt) were determined at the end of each week. Maternal diet (food-frequency questionnaire) and physical activity (Kaiser Physical Activity Survey) were measured during the third trimester of pregnancy and on day 3 or 4 and during week 6 of lactation. Statistical analyses include 1-factor ANOVA, Spearman and Pearson correlations, and multiple linear regression. 
Results: In all women, a weekly increase in milk energy, total fat, and total carbohydrates was seen, whereas a weekly decrease in proteins and vitamin A was found during the first 2 wk of lactation, followed by a stable concentration of all nutrients. At week 4, milk protein concentrations were higher in women who had undergone BS (14 g/L) compared with NW (8 g/L; P = 0.005) and OW (9 g/L; P = 0.019) women. At week 5, milk carbohydrate concentrations were higher in women who had undergone BS (74 g/L) compared with NW women (68 g/L; P = 0.042). 
Conclusions: Breast milk of women who have undergone BS appears to be adequate in energy, macronutrients, and vitamin A during the first 6 wk of lactation. This supports the conclusion that breast feeding should not be discouraged in this group of women.},
  author       = {Jans, Goele and Devlieger, Roland and De Preter, Vicky and Ameye, Lieveke and Roelens, Kristien and Lannoo, Matthias and Van der Schueren, Bart and Verhaeghe, Johan and Matthys, Christophe},
  issn         = {0022-3166},
  journal      = {JOURNAL OF NUTRITION},
  keywords     = {MATERNAL GASTRIC BYPASS,PHYSICAL-ACTIVITY SURVEY,PREGNANT-WOMEN,MACRONUTRIENT COMPOSITION,VITAMIN-A,PROSPECTIVE COHORT,LIFE-STYLE,DEFICIENCY,VALIDATION,IMPACT,breast milk,macronutrients,vitamin A,maternal diet,bariatric surgery},
  language     = {eng},
  number       = {7},
  pages        = {1096--1102},
  title        = {Bariatric surgery does not appear to affect women's breast-milk composition},
  url          = {http://dx.doi.org/10.1093/jn/nxy085},
  volume       = {148},
  year         = {2018},
}

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