Karen M. O'Callaghan

Lecturer

King’s College London

United Kingdom

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Dr. Karen M. O'Callaghan is a Lecturer at King's College London in the United Kingdom. Her research interests focus on maternal and child health, with particular emphasis on vitamin D's role in pregnancy outcomes and child development, as reflected in her recent publications. Additionally, she explores methods for assessing child growth and the impact of nutritional practices in clinical research.

Articles (10)

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2024

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2024

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2023

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2023

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2023

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2022

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2022

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2021

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2020

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2020

Collaborators (4)

Kathryn Dalrymple

King’s College London

UNITED KINGDOM

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Angela Flynn

King’s College London

UNITED KINGDOM

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Alison Gernand

Associate Professor

Pennsylvania State University

UNITED STATES

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Daniel Roth

department of biological sciences university of toronto scarborough toronto ontario canada

CANADA

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Karen M. O'Callaghan

Research Interests

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About

Articles (10)

Vitamin D status of pregnant women with obesity in the United Kingdom and its association with pregnancy outcomes: a secondary analysis of the UPBEAT study

Height-age as an alternative to height-for-age z-scores to assess the effect of interventions on child linear growth in low- and middle-income countries

Estimation of skeletal muscle mass in 4-year-old children using the D<sub>3</sub>-creatine dilution method.

Maternal prenatal, with or without postpartum, vitamin D3 supplementation does not improve maternal iron status at delivery or infant iron status at 6 months of age: secondary analysis of a randomised controlled trial

Prenatal but not continued postpartum vitamin D supplementation reduces maternal bone resorption as measured by C-terminal telopeptide of type 1 collagen without effects on other biomarkers of bone metabolism

Effect of maternal prenatal and postpartum vitamin D supplementation on offspring bone mass and muscle strength in early childhood: follow-up of a randomized controlled trial

Fecal Iron Measurement in Studies of the Human Intestinal Microbiome.

Basal Vitamin D Status and Supplement Dose Are Primary Contributors to Maternal 25-Hydroxyvitamin D Response to Prenatal and Postpartum Cholecalciferol Supplementation

Standardization of laboratory practices and reporting of biomarker data in clinical nutrition research.

Vitamin D in Breastfed Infants: Systematic Review of Alternatives to Daily Supplementation.

Collaborators (4)

Kathryn Dalrymple

Angela Flynn

Alison Gernand

Daniel Roth

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