Results 31 to 40 of about 26,277,168 (365)

Vitamin A – a scoping review for Nordic nutrition Recommendations 2023

Food & Nutrition Research, 2023
Vitamin A refers to a group of fat-soluble compounds with retinol activity, including all-trans retinol and pro-vitamin A carotenoids. Bioactive compounds include retinal and all-trans retinoic acid with important functions in vision, immune function ...
Thomas Olsen, Ulf H. Lerner
doaj   +1 more source

Vitamin A and vitamin D regulate the microbial complexity, barrier function, and the mucosal immune responses to ensure intestinal homeostasis

Critical reviews in biochemistry and molecular biology, 2019
Diet is an important regulator of the gastrointestinal microbiota. Vitamin A and vitamin D deficiencies result in less diverse, dysbiotic microbial communities and increased susceptibility to infection or injury of the gastrointestinal tract. The vitamin
M. Cantorna, Lindsay M Snyder, Juhi Arora   +2 more
semanticscholar   +1 more source

Vitamin A and Pregnancy: A Narrative Review

Nutrients, 2019
Vitamin A is a crucial micronutrient for pregnant women and their fetuses. In addition to being essential for morphological and functional development and for ocular integrity, vitamin A exerts systemic effects on several fetal organs and on the fetal ...
Sabina Bastos Maia, A. S. Rolland Souza, Maria de Fátima Costa Caminha, Suzana Lins da Silva, Rachel de Sá Barreto Luna Callou Cruz, Camila Carvalho Dos Santos, M. Batista Filho   +6 more
semanticscholar   +1 more source

Vitamin D deficiency 2.0: an update on the current status worldwide

European Journal of Clinical Nutrition, 2020
Vitamin D testing and the use of vitamin D supplements have increased substantially in recent years. Currently, the role of vitamin D supplementation, and the optimal vitamin D dose and status, is a subject of debate, because large interventional studies
K. Amrein, Mario Scherkl, Magdalena Hoffmann, Stefan Neuwersch-Sommeregger, M. Köstenberger, Adelina Tmava Berisha, G. Martucci, S. Pilz, O. Malle   +8 more
semanticscholar   +1 more source

Krill Meal Enhances Antioxidant Levels and n-3 Fatty Acid Content of Egg Yolk from Laying Hens Fed a Low-Pigment Diet

The Journal of Poultry Science, 2020
This study was conducted to determine effects of krill meal supplementation on production performance, egg quality, antioxidant substances, and fatty acid composition of egg yolk from hens fed a low-pigment diet. A total of 640 laying hens (Lohmann Brown)
Kwanticha Prommetta, Seksom Attamangkune, Yuwares Ruangpanit   +2 more
doaj   +1 more source

Vitamin D Supplements and Prevention of Cancer and Cardiovascular Disease

New England Journal of Medicine, 2019
BACKGROUND It is unclear whether supplementation with vitamin D reduces the risk of cancer or cardiovascular disease, and data from randomized trials are limited.
J. Manson, N. Cook, I. Lee, W. Christen, S. Bassuk, S. Mora, Heike Gibson, D. Gordon, T. Copeland, Denise D’Agostino, G. Friedenberg, Claire Ridge, V. Bubes, E. Giovannucci, W. Willett, J. Buring   +15 more
semanticscholar   +1 more source

Dietary diversity and associated factors among infants and young children in three West African countries

Frontiers in Public Health
Providing children healthy diversified diets is important for their optimal growth and development. The high prevalence of under-nourishment during the critical early life period is of serious concern in West Africa.
Amynah Janmohamed, Melissa M. Baker, David Doledec, Fatou Ndiaye, Ahmenan Claude Liliane Konan, Amoakon Leonce, Koffi Landry Kouadio, Maguette Beye, Mohamed L. Yattara, Romance Dissieka   +9 more
doaj   +1 more source

Dietary vitamin a intake, coverage of vitamin a megadose supplementation, and prevalence of vitamin a deficiency among marginalized children 6–59 months in anganwadis of Chandigarh: A multistage cluster sampling survey

Indian Journal of Community Medicine, 2021
Background: Lack of recent local data regarding Vitamin A deficiency, dietary intake, and coverage of biannual high-dose Vitamin A prophylaxis among marginalized children poses challenges for policy change.
Rohit Yadav, Ajay Patial, Bhavneet Bharti, Savita Verma Attri, Prateek Bhatia   +4 more
doaj   +1 more source

Vaccination rates modulate the correlation between country latitude and covid-19 surge date arising this autumn 2021 [PDF]

arXiv, 2021
A clear linear correlation of covid-19 surge date with country latitude was observed last autumn 2020, but not with temperature, nor with humidity, pointing the seasonal vitamin D status decline as a contributor factor. Well vaccinated European countries are this autumn 2021 repeating explosive surges.
arxiv  

Vitamin D supplementation to prevent acute respiratory tract infections: systematic review and meta-analysis of individual participant data

British medical journal, 2017
Objectives To assess the overall effect of vitamin D supplementation on risk of acute respiratory tract infection, and to identify factors modifying this effect.
A. Martineau, David A. Jolliffe, R. Hooper, L. Greenberg, J. Aloia, P. Bergman, G. Dubnov-Raz, S. Esposito, D. Ganmaa, A. Ginde, E. Goodall, C. Grant, C. Griffiths, W. Janssens, I. Laaksi, S. Manaseki-Holland, D. Mauger, D. Murdoch, R. Neale, J. Rees, S. Simpson, I. Stelmach, G. Kumar, M. Urashima, C. Camargo   +24 more
semanticscholar   +1 more source