Reina Engle-Stone, Ph.D.

Education

• B.A., Cornell University, Ithaca, New York
• Ph.D., University of California, Davis

Research Interests

Dr. Engle-Stone's research is in global public health nutrition, with a focus on micronutrient nutrition among women and young children in low-income settings. Research themes include planning, monitoring, and evaluation of food fortification programs; cost-effectiveness and coherence among micronutrient intervention programs, and nutritional assessment.

Selected Publications

Full list of publications available here: https://www.ncbi.nlm.nih.gov/sites/myncbi/1beLvasEYhvAg/bibliography/40315043/public/

Moraga Franco C, Falbe J, Arnold CD, Engle-Stone R. The food fortification
landscape in the United States: Identification and prevalence of fortified
food purchases using household scanner data. J Nutr. 2025 Aug
15:S0022-3166(25)00493-6. Doi: 10.1016/j.tjnut.2025.08.015.

Haile D, Engle-Stone R, Caswell B, Luo H, Dodd KW, Arnold CD, Jobarteh M,
Greene M, Chipil M, Haskell MJ, Palmer AC. Simulated impact of vitamin
A-fortified sugar on dietary adequacy and association of usual sugar intake
with plasma and breast milk retinol among lactating Zambian women. Matern
Child Nutr. Matern Child Nutr. 2025 Aug 6:e70077.doi: 10.1111/mcn.70077.

Adu-Afarwuah S, Kumordzie SM, Wessells KR, Arnold CD, Tan X, Fuseini A,
Vosti SA, Haskell MJ, Becher ER, Davis JN, Adams KP, Engle-Stone R. Anemia,
micronutrient deficiency, and elevated biomarkers of inflammation among
women and children in two districts in the Northern Region of Ghana: a
pilot study. PLoS One. 2025 Jun 17;20(6):e0317647. Doi:
10.1371/journal.pone.0317647.

Riazati N, Engle-Stone R, Stephensen C. Association of Vitamin D Status
with Immune Markers in a Cohort of Healthy Adults. J Nutr. 2025 Feb;
155(2):621-633. Doi: 10.1016/j.tjnut.2024.12.010.

Engle-Stone R, Kumordzie S, Luo H, Wessells KR, Adu-Afarwuah S,
Ndjebayi A, Teta
I, Régis Y-L, Gyimah E, Vosti SA, Adams KP. The potential for bouillon
fortification to reduce dietary micronutrient inadequacy: Modeling analyses
using national survey data from Cameroon, Ghana, and Haiti. Curr Dev Nutr.
2024 Oct 18;8(11):104485. Doi: 10.1016/j.cdnut.2024.104485.

Green MH, Lopez-Teros V, Green JB, Lietz G, Kumorzie S, Oxley A, Fuseini
AD, Nyaaba KW, Becher E, Davis JN, Wessells KR, Adu-Afarwuah S, Engle-Stone
R, Haskell MJ. Use of Population-Based Compartmental Modeling and Retinol
Isotope Dilution to Study Vitamin A Kinetics and Total Body Stores Among
Ghanaian Women of Reproductive Age. Curr Dev Nutr. 2024 Oct
18;8(11):104484. Doi: 10.1016/j.cdnut.2024.104484.

Arballo J, Rutkowski J, Haskell MJ, De Las Alas K, Engle-Stone R, Ramsey J,
Ji P. Pre- and post-natal vitamin A deficiency impairs motor skills without
a consistent effect on trace mineral status in young mice. Int J Mol Sci.
2024 Oct 8;25(19):10806. Doi: 10.3390/ijms251910806.

Vosti SA, Jarvis M, Anjorin OM, Beye M, Ishaya F, Koudougou K, Oni B, Somda
H, Engle-Stone R, Adams KP. The costs and potential allocation of costs of
bouillon fortification: the cases of Nigeria, Senegal, and Burkina Faso.
Ann N Y Acad Sci.2024 Nov;1541(1):181-201. Doi: 10.1111/nyas.15234.

Moraga C, Kuyper E, Engle-Stone R. Formative assessment of community health
center Food is Medicine programs during Covid-19 in Northern California. J
Ag Food Sys Comm Dev. 2024 Dec; 14(1):371-392. Doi:
10.5304/jafscd.2024.141.014.

Adams KP, Vosti SA, Becher E, Ishaya F, Engle-Stone R. Bouillon
fortification as a strategy to address inequities in micronutrient adequacy
of diets in Nigeria. Ann N Y Acad Sci.2024 Oct;1540(1):235-250. Doi:
10.1111/nyas.15207.

Thompson L, Becher E, Adams KP, Haile D, Walker N, Tong H, Vosti SA,
Engle-Stone R. Modeled impacts of bouillon fortification with
micronutrients on child mortality in Senegal, Burkina Faso, and Nigeria.
Ann N Y Acad Sci.2024 Jul;1537(1):82-97. Doi: 10.1111/nyas.15174.

Adams KP, Vosti SA, Somé JW, Tarini A, Becher E, Koudougou K, Engle-Stone R.
Micronutrient-fortified bouillon as a strategy to improve the micronutrient
adequacy of diets in Burkina Faso. Ann N Y Acad Sci. 2024
Jun;1536(1):135-150. Doi: 10.1111/nyas.15155.

Adams KP, Vosti SA, Tarini A, Beye M, Pachón H, Kiselova S, Engle-Stone R.
The potential contributions of bouillon fortification to meeting
micronutrient requirements among women and preschool children in Senegal: A
modeling study using household consumption and expenditure survey data. Ann
N Y Acad Sci. 2024 Jul; 1537(1):98-112. Doi: 10.1111/nyas.15156.

Engle-Stone R, Wessells KR, Haskell MJ, Kumordzie SM, Arnold CD, Davis JN,
Becher ER, Fuseini AD, Nyaaba KN, Tan X, Adams KP, Lietz G, Vosti SA,
Adu-Afarwuah S. Effect of multiple micronutrient-fortified bouillon on
micronutrient status among women and children in the Northern Region of
Ghana: Protocol for the Condiment Micronutrient Innovation Trial (CoMIT): a
community-based, randomized controlled trial. PloS One. 2024 May
6;19(5):e0302968. Doi: 10.1371/journal.pone.0302968.

Chapple A, Reynolds E, Mude A, Riaz SW, Engle-Stone R. Is investing in food
small and medium enterprises (SMEs) a viable path to improved nutrition in
Sub-Saharan Africa? A multi-disciplinary perspective. Applied Econ
Perspectives and Policy. 2024; 46(2): 475-498.
https://doi.org/10.1002/aepp.13427

Davis JN, Kumordzie SM, Arnold CD, Wessells KR, Nyaaba KW, Adams KP, Tan X,
Becher ER, Haskell MJ, Vosti SA, Adu-Afarwuah S, Engle-Stone R. Consumption
of discretionary salt and salt from bouillon among households, women, and
young children in Northern Region, Ghana: a mixed-methods study within the
CoMIT project. Curr Dev Nutr. 2024 Feb 6; 8(3):102088. Doi:
10.1016/j.cdnut.2024.102088.

Wessells KR, Kumordzie SM, Becher ER, Davis JN, Arnold CD, Tan X, Vosti SA,
Adams KP, Haskell MJ, Adu-Afarwuah S, Engle-Stone R. Acceptability of a
multiple micronutrient-fortified bouillon cube in women and their
households in two districts in the Northern region of Ghana. Curr Dev Nutr.
2023 Dec 8; 8(1):102056. Doi: 10.1016/j.cdnut.2023.102056.

Adams KP, Vosti SA, Arnold CD, Engle-Stone R, Prado EL, Stewart CP,
Wessells KR, Dewey KG. The cost-effectiveness of small-quantity lipid-based
nutrient supplements for prevention of child death and malnutrition and
promotion of health development: modeling results for Uganda. Public Health
Nutr. 2023 Oct; 26(10): 2083-2095. Doi: 10.1017/S1368980023001805.

Vosti SA, Adams KP, Michuda A, Luo H, Haile D, Chou V, Clermont A, Teta I,
Ndjebayi A, Guintang J, Engle-Stone R. Impacts of Micronutrient
Intervention Programs on Effective Coverage and Lives Saved: Modelled
Evidence from Cameroon. Ann N Y Acad Sci. 2023 Jan; 1519(1):199-210. Doi:
10.1111/nyas.14937.

Davis JN, Williams AM, Arnold CD, Addo Y, Flores-Ayala R, Oaks B, Rohner F,
Suchdev PS, Wirth JP, Young MF, Engle-Stone R. The relationship between
ferritin and body mass index is mediated by inflammation among women in
higher-income countries, but not in most lower-income countries nor among
young children: A multicountry analysis. Curr Dev Nutr. 2022 Sep 9;
6(10):nzac139. Doi: 10.1093/cdn/nzac139.

Engle-Stone R, Miller JC, Reario MFD, Arnold CD, Stormer A, Lafuente E,
Oxley A, Capanzana MV, Cabanilla CVD, Ford JL, Clark A, Velavan TP, Brown
KH, Lietz G, Haskell MJ. Filipino children with high usual vitamin A
intakes and exposure to multiple sources of vitamin A have elevated total
body stores of vitamin A but do not show clear evidence of vitamin A
toxicity. Curr Dev Nutr. 2022 Jul 25; 6(8):nzac115. Doi:10.1093/cdn/nzac115

Luo H, Dodd KW, Arnold CD, Engle-Stone R. Advanced dietary analysis and
modeling using the National Cancer Institute method: Underlying theory to
unpack the black box. J Nutr. 2022 Jun29:nxac144. Doi: 10.1093/jn/nxac144

Olivares LV, Engle-Stone R, Arnold CD, Langer CE, Schenker M. Anemia,
weight status, and fatigue among farmworkers in California: a
cross-sectional analysis. J Occup Environ Med. 2022 Aug 1; 64(8):e459-e466.

Adams KP, Vosti SA, Mbuya M, Friesen VM, Engle-Stone R. Leveraging
household consumption and expenditure survey data to inform the design of
food fortification programs: Update on analytical methods and research
gaps. Adv Nutr. 2022 Jun 1;13(3):953-969. Doi: 10.1093/advances/nmac021

French CD, Arsenault JE, Arnold CD, Luo H, Dodd KW, Vosti SA, Slupsky CM,
Haile D, Engle-Stone R; Variance Components of Nutrient Intakes Data
Working Group. Within-person variation in nutrient intakes across
populations and settings: implications for the use of external estimates in
modeling usual nutrient intake distributions. Adv Nutr. 2021 Mar
31;12(2):429-451. Doi:10.1093/advances/nmaa114