Efficacy and safety of new complementary feeding guidelines with an emphasis on red meat consumption: a randomized trial in Bogota, Colombia
Olaya GA, Lawson M, Fewtrell MS
The American journal of clinical nutrition · 25 citas
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Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
- Consumo medido con
- Cuestionario de frecuencia de consumo
Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 2013-08-15 · Am J Clin Nutr · vol. 98 · número 4 · págs. 983–993
- Editorial
- Elsevier BV
- Citado
- 49 citas · más que el 90% de estudios similares · 2.9× el promedio de su campo
- Referencias
- 39 trabajos
- Acceso
- Lectura gratuita
- Áreas de investigación
- Child Nutrition and Water Access · Infant Nutrition and Health · Iron Metabolism and Disorders
- Palabras clave
- red meat consumption, infant iron status, linear growth, anemia, hemoglobin, serum ferritin, breastfeeding, socioeconomic deprivation, Bogotá, low-income infants, fruit and vegetable intake, iron deficiency anemia prevention
- MeSH
- animals, humans, fruit, vegetables, zinc, iron, dietary, hemoglobins, body height, hematocrit, diet, follow-up studies, safety, breast feeding, nutritional status, nutrition policy, infant food, meat, infant, colombia, infant nutritional physiological phenomena
3 autores
- Gilma Aurora Olaya-Vega🇨🇴🇬🇧Pontificia Universidad Javeriana; University College London
- Margaret S. Lawson🇨🇴Pontificia Universidad Javeriana
- Mary S. Fewtrell🇨🇴Pontificia Universidad Javeriana
Resumen
El texto original del estudio, en el idioma en que se publicó.
Background
Iron deficiency and poor linear growth are common in infants from deprived socioeconomic backgrounds and may be associated with inadequate complementary feeding (CF) practices.
Objective
We tested the hypothesis that new CF guidelines emphasizing meat as a source of iron and zinc would improve linear growth, iron, and zinc status in infants living in poor socioeconomic circumstances in Bogota, Colombia.
Design
A total of 85 term infants who were exclusively breastfed for ≥4 mo were randomly assigned at 6 mo of age to a control group [CG (n = 43); current advice] or intervention group (new guidelines group [NGG (n = 42); with counseling to 1) continue breastfeeding, 2) offer red meat ≥3 d/wk, and 3) offer fruit and vegetables daily]). Main outcomes were 1) linear growth from 6 to 12 mo of age; 2) hemoglobin, hematocrit, iron [serum ferritin (SF)], and zinc status at 12 mo of age; and 3) meat intake at 12 mo of age (by using a food-frequency questionnaire).
Results
A total of 38 infants/group provided data at 12 mo of age. NGG infants had significantly higher red meat intake [mean ± SD: 5.4 ± 1.8 compared with 3.5 ± 1.7 d/wk at 12 mo of age; P < 0.001), higher hemoglobin and hematocrit at 12 mo of age, and a significantly greater increase in hemoglobin (mean ± SD change: 0.41 ± 0.8 compared with -0.13 ± 1.0; P = 0.01) and hematocrit (1.04 ± 2.2 compared with -0.15 ± 2.4; P = 0.03) from 6 to 12 mo of age than those in CG infants. There were no significant differences in linear growth from 6 to 12 mo of age or in SF or zinc.
Conclusions
The new guidelines showed efficacy with higher red meat intake and positive effects on hemoglobin and hematocrit. The intervention was acceptable and affordable for most mothers. These preliminary results suggest that the intervention merits investigation in a larger cohort with longer-term follow-up. This trial was registered at http://isrctn.org as ISRCTN57733004.
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