Sarah S. Comstock, PhD

Dr. Comstock

Sarah Comstock is an assistant professor in the Department of Food Science and Human Nutrition at Michigan State University. She earned a Ph.D. in Nutritional Biology from the University of California, Davis, and a B.S. in biochemistry from the University of Chicago. After her PhD, Dr. Comstock completed post docs with Dr. Jenifer Fenton (Michigan State University) and Dr. Sharon Donovan (University of Illinois, Urbana-Champaign).

Currently, Dr. Comstock is running a prospective longitudinal cohort study with pregnant women and their infants to understand the relationship between pre-pregnancy obesity and infant growth as mediated by maternal transfer of gut bacteria to her child. Previously, Dr. Comstock researched the effects of human milk components on immune development using the neonatal piglet as a model for human infants. She has also worked with a mouse model of food allergy to understand potential mechanisms of sensitization and the possible role of polyphenolic compounds in that sensitization process. During her most recent post doc she strengthened her nutritional epidemiology skills while determining associations between biomarkers and colorectal-polyps as well as assessing the effects of fatty acid levels on child growth. In the same post doc, she also assessed the role of dietary fish oil on gut microbiota and immune response in a mouse model of colitis.

You can find her publications by searching "Comstock SS" on PubMed.

Or, you can click this link to go to MyBibliography.

Her Google Scholar Profile is available here.


"The microbiota is the best because it is a read-out of the interactions between host genes and the environment. It's the ultimate biomarker." --Sarah Comstock


Dr. Comstock's contribution to FOOD@MSU regarding longevity of probiotics in the gastrointestinal tract.

If you are pregnant and interested in participating in her research:



Current Lab Support

The lab is currently supported by funds from:

Michigan State University


Blue Cross Blue Shield Michigan Foundation: Antibiotic use during pregnancy and antibiotic resistance in offspring

BCBSM Foundation Logo


Michigan State University/Wayne State University/University of Michigan ECHO Internal Grant ProgramCHARM logo


The National Institutes of Health, ECHO (Environmental Influences on Child Health Outcomes) Program (NIH UG3 OD023285)


ECHO logo



Research Presentations:

June, Nutrition 2019, Baltimore, MD


3 People in front of a research poster

May, Purdue Microbiome Symposium, West Lafayette, IN


People around a dinner table

June, Nutritional Immunology FASEB SRC, Leesburg, VA

June, Nutrition 2018, Boston, MA

March 2018, Keystone Meeting, Banff, Canada

Kameron at Keystone Meeting 2018

Dr. Comstock Keystone Meeting Banff 2018


April 2017, American Society for Nutrition Annual Meeting, Chicago, Illinois

Michigan Cohorts to Assess the Associations of Maternal Pre-Pregnancy Obesity with Pregnancy and Infant Gastrointestinal Microbial Communities

Effects of Storage Conditions on Gut Microbiota Data

Kameron Giving Talk at EB

Chicago Millennium Park


May 2017, Michigan Dietetics Association, Grand Rapids, MI

Immune Modulating Effects of Human Milk Components


Lab Members

Fall 2019




Summer 2019


Lab People


Spring 2019 UURAF


6 people

Fall 2018

2018 Fall Groupt Photo

Summer 2018

Summer 2018


UURAF Spring 2018

Spring 2018


New Freezer (March 2018):

New Freezer 2018


Fall 2017

2017 Fall Group Photo


Summer 2017 (at Escape 20/20):

Lab Members at Escape 20/20


October 2016:



Summer 2016:




Mentoring has been a strong component of Dr. Comstock's research career.  She has worked with undergraduate students, medical research fellows, veterinary students and graduate students as they undertook independent research projects under her mentorship. If you are interested in research opportunities in her lab, drop her an email at comsto37 at msu dot edu. Prior students, feel free to drop me a line to let me know where life has taken you!