The Effect of a Nutrient Dense Food on the Skin CarotenoidLevels of School Age Children
The Effect of a Nutrient Dense Food on the Skin Carotenoid Levels of School Age Children
Background: In a previous study, children who consumed a high-carotenoid juice over 8 weeks significantly increased skin carotenoid levels as compared to children who consumed a placebo juice. A naturally carotenoid-rich baked product, potentially marketable as a healthy breakfast food alternative, was developed by Utah State University researchers.
Objective: To determine the effect and response of a carotenoid-rich baked product on change in skin carotenoid levels among children.
Design: A six week randomized controlled trial. Participants/setting: Participants were children age 5-18 during March-June, 2015 living in Cache County, UT (n=46). Intervention: Children were randomly assigned to one of two groups: treatment (n=23) with a high carotenoid baked food or control (n=25) who consumed a baked food with no carotenoids. Children were asked to eat the designated portion of the assigned food once a day for six weeks. Skin carotenoid levels were measured every two weeks by a BioPhotonic scanner and reported in Raman intensity counts. Participants were asked to maintain their diet and completed a food frequency questionnaire at Baseline, Week 3, and Week 6. Uneaten portions of the food were returned to clinic, counted, and recorded.
Main outcome measures: Change in skin carotenoid levels as measured in Raman counts over 6 weeks.
Statistical analysis performed: Repeated-measures ANOVA was used to assess the group differences in Raman counts.
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Tipo de estudo
Inscrição (Real)
Estágio
- Não aplicável
Contactos e Locais
Locais de estudo
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Utah
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Logan, Utah, Estados Unidos, 84322-9815
- Utah State University, Center for Human Nutrition Studies
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Descrição
Inclusion Criteria:
- Skin carotenoid levels 11,000-33,000 Raman intensity counts
- Age 5-18 years
- Willing to attend 7 clinic visits
- Willing to eat designated food each day for 6 weeks
Exclusion Criteria:
- Illness in two weeks before study began
- Chronic disease such as asthma, rheumatoid arthritis, type 1 diabetes
- Skin carotenoid levels <11,000 and >33,000 Raman intensity counts
- Consumption of high carotenoid supplements
- Use of topical self-tanning lotion
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Outro
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Dobro
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
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Comparador Ativo: High-carotenoid food feeding trial
Twenty-three children were randomly assigned to a treatment with a high carotenoid baked food (4.3mg carotenoids/120g, 360 kcal)
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Children were asked to eat the designated portion of the assigned food once a day for six weeks.
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Comparador de Placebo: No-carotenoid food feeding trial
Twenty-five children were randomly assigned to consume a baked food with no carotenoids (300 kcals/73g)
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Children were asked to eat the designated portion of the assigned food once a day for six weeks.
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
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Raman resonance spectroscopy
Prazo: 6 weeks
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The skin carotenoid levels were determined by calculating the average height of the peak Raman absorbance signal obtained and quantified from excitation of skin carotenoids using a low-intensity blue light-emitting diodes light (λ=473 nm) with green light (510 nm) detection.24
The BioPhotonic Scanner Everest 2TM skin carotenoids were reported as Raman intensity counts.
The higher the count, the higher the concentration of carotenoid molecules detected at the site of measurement.
The scanner reports total carotenoid count, rather than individual carotenoid counts, as there is overlap in the absorption spectra of each carotenoid.
During the warm-up process, the black calibration cap, which covers the scanner's light-emitting diodes light, allows the scanner to self-calibrate using a patented process.
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6 weeks
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Colaboradores e Investigadores
Patrocinador
Colaboradores
Investigadores
- Investigador principal: Karin Allen, PhD, Utah State University
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Conclusão Primária (Real)
Conclusão do estudo (Real)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Outros números de identificação do estudo
- USU #6351
Plano para dados de participantes individuais (IPD)
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