# Infant Gut Microbiome Studies Leche and Tiny Health Has Put Out Their Donor Milk Clinical Study By Adam Harrie | Published 2026-07-20 | Life-Stages Source: Trend Hunter, https://www.trendhunter.com/trends/donor-milk References: [businesswire](https://www.businesswire.com/news/home/20260720235996/en/Leche-and-Tiny-Health-Launch-First-Clinical-Study-of-Donor-Breast-Milks-Effect-on-Formula-Fed-Infants-Gut-Health) & [itsmyleche](https://itsmyleche.com/blogs/resources/how-donor-breast-milk-supports-the-formula-fed-infant-microbiome?srsltid=AfmBOordA2pzhC9F9_AYSabTJFO8T0ViySxGQQ875WvQH-oniHHJQN4p)  [Leche](https://www.trendhunter.com/trends/freezedrying-technology) and [Tiny Health](https://www.trendhunter.com/trends/free-to-feed) announced a joint clinical study examining how their donor milk collaboration affects gut health in formula-fed infants, marking one of the first studies to apply modern microbiome science specifically to donor breast milk. The research will assess whether adding a small daily amount of Leche's shelf-stable powdered donor milk to formula feeds produces measurable changes in [gut bacterial composition](https://www.trendhunter.com/trends/bioma-health) among 100 healthy, full-term babies. Using shotgun metagenomics, Tiny Health will test infants' gut microbiomes at enrollment and again after one month of supplementation, looking for increases in Bifidobacterium and shifts toward a more breastfed-like pattern. Leche and Tiny Health show how emerging microbiome research could give donor milk a credible, evidence-based role in infant feeding routines beyond the traditional breast-versus-formula binary. Image Credit: Leche/Tiny Health ## Trend Insights (Trend Hunter) - Score: 5.4/10 - Popularity: 39% | Activity: 39% | Freshness: 84% - Audience gender: 10% men, 90% women - Primary generations: Gen Alpha - Top markets: North America, South America, Europe, Asia, Africa ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Life-Stages](https://www.trendhunter.com/life-stages) > [Babies](https://www.trendhunter.com/babies) ## Key Themes ### Why This Trend Is Growing - **Microbiome-guided Infant Nutrition:** Advanced gut profiling creates room for personalized feeding products that bridge formula and breast milk with measurable microbial outcomes. - **Shelf-stable Donor Milk:** Powdered donor milk formats expand access to bioactive infant nutrition while enabling new hybrid feeding routines outside hospital settings. - **Evidence-based Feeding Supplements:** Clinical validation of small daily nutritional additions reshapes infant supplement markets around outcomes tied to gut health and early development. ### Industries Being Reshaped - **Infant Nutrition:** Formula, donor milk, and supplement brands can be redefined by microbiome-backed products that serve parents seeking clinically supported feeding options. - **Microbiome Testing:** At-home and clinical sequencing platforms gain relevance as infant gut data becomes a practical tool for product development and parental decision-making. - **Maternal and Child Health:** Care providers, lactation services, and pediatric health systems are positioned around emerging feeding protocols that blend accessibility with biological personalization. ## Related on Trend Hunter - [Microbiome-Centred Intimate Wellness Lines](https://www.trendhunter.com/trends/microbiomecentred-intimate-wellness.md) - [Baby Gut-Focused Educational Campaigns](https://www.trendhunter.com/trends/little-gut.md) - [Transparency-First Infant Formulas](https://www.trendhunter.com/trends/organic-grassfed-whole-milk-infant-formula.md) - [Microbiome-Based Bone Health Research](https://www.trendhunter.com/trends/bone-health.md) - [Baby-Focused Nutrition Supplements](https://www.trendhunter.com/trends/biostime.md) - [Advanced At-Home Gut Health Tests](https://www.trendhunter.com/trends/advanced-at-home-gut-health-test.md) - [Infant Microbiome Studies](https://www.trendhunter.com/trends/free-to-feed.md) - [Baby-Focused Synbiotic Supplements](https://www.trendhunter.com/trends/synbiotic-supplement.md) - [Reproductive Health Studies](https://www.trendhunter.com/trends/tiny-health1.md)