An interventional study of Dairy Milk and Soy Milk in Nutrition and Healthy, sponsored by Clinical Nutrition Research Center, Illinois Institute of Technology. Active, not recruiting at 1 site in United States. Open to participants aged 25 Years to 70 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-08-28.
Sponsored by Clinical Nutrition Research Center, Illinois Institute of Technology · Not applicable, Interventional, and Prevention
Plant-based milk alternatives (PBMAs) are a popular alternative to cow's milk. The different types of PBMAs on the market shelf include almond, oat, soy, coconut, cashew, pea, hemp, and rice. Among these, PBMA made from almonds, oats and soy are the most popular in North America. Though PBMAs are designed to mimic cow's milk in terms of color, they often have a very different nutrition profile. In order to better substitute for cow's milk, PBMAs often have added vitamins and minerals, as well as added sugars and flavorings to improve flavor.
This study will test how well certain nutrients (vitamin D, calcium, potassium, and magnesium) are absorbed by the body after intake of milk and PBMAs. Nutrient absorption will be measured using blood samples after short term intake (from 1 hours to 1 week) of almond, soy, and oat milk, and compare it to cow's milk. Participants in the study will avoid all fluid dairy products and vitamin-D supplemented foods for three weeks and then be asked to consume either almond, soy, oat, or cow's milk for one week.
All participants will visit the Clinical Nutrition Research Center (CNRC) four times over the course of about one month. These visits include a screening and pre-study visit (1.5 hrs), a pick-up visit (30 min), one long study day visit (\~11 hours), and two shorter follow up study day visits (1 hr).
The study has several objectives:
This study will test how well certain nutrients (Vitamin D, calcium, potassium, and magnesium) are absorbed by the body after intake. We will examine nutrient absorption after short term intake (from 1 hour to 1 week) of almond, soy, and oat milk, and compare it to cow's milk. Participants in the study will avoid all fluid dairy products and any dairy or foods fortified with vitamin D for three weeks and then will be asked to consume either almond, soy, oat, or cow's milk for one week. All participants will visit the Clinical Nutrition Research Center (CNRC) at least five times over the course of about one month. The visits will proceed as follows:
The blood and urine samples will be analyzed for specific nutrients and compared between the four randomized groups.
Exclusion Criteria:
Participants will drink 16 oz of dairy milk daily for the duration of the study.
Other: Dairy Milk
Participants will drink 16 oz of soy milk daily for the duration of the study.
Other: Soy Milk
Participants will drink 16 oz of almond milk daily for the duration of the study.
Other: Almond Milk
Participants will drink 16 oz of oat milk daily for the duration of the study.
Other: Oat Milk
Daily, each participant will consume 16 oz of the type of milk (plant based or dairy) two which they are randomized.
Daily, each participant will consume 16 oz of the type of milk (plant based or dairy) two which they are randomized.
Daily, each participant will consume 16 oz of the type of milk (plant based or dairy) two which they are randomized.
Daily, each participant will consume 16 oz of the type of milk (plant based or dairy) two which they are randomized.
Concentration of vitamin D in plasma/serum
Measure the concentration of blood vitamin D postprandial and after short term (1 week) intake and compare between all arms.
Time frame: Collect data from 1 hour to 1 week post-consumption
Concentration of calcium, potassium, and magnesium in human serum and urine
Measure the concentration of blood and urine calcium, potassium, and magnesium postprandial and after short term (1 week) intake and compare between all arms.
Time frame: Collect data from 1 hour to 1 week post-consumption
Plan to share: No
No publications or documents are linked to this record.
This study is active, not recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.
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Clinical Nutrition Research Center, Illinois Institute of Technology