Lecithin and fat digestion in an infant formula model
What it found
In lab tests on an infant formula model, lecithin helped fat and protein break down faster.
The 5% lecithin mix gave the highest rate and extent of digestion.
What they found
Animal and lab studies
Stability and particle size
Adding 5% and 7% lecithin improved the physical stability of the emulsion, narrowed the range of particle size, reduced the mean particle size and increased the zeta potential.
Digestion at 5% lecithin
The 5% lecithin emulsion showed the highest rate and extent of lipid and protein digestion.
How lecithin helped
Lecithin stabilized the emulsion and suppressed droplet flocculation after digestion, which caused the positive effects.
What the authors conclude
“Lecithin promotes lipid digestion and may improve the "insufficient fat supply" in infant formula.”
Also in their conclusions
- They say lecithin promotes lipid digestion and may improve the "insufficient fat supply" in infant formula.
How it was done
The authors' earlier work suggested that proteins clumping together in infant formula can slow fat digestion. They wanted to see whether lecithin could reduce that clumping and speed digestion up.
They made an infant formula emulsion model with fat droplets matching the fatty acid makeup of breast milk, milk protein, and different levels of lecithin. Lecithin replaced the proteins at the droplet surface in a dose-dependent manner.
What it can’t tell you
- We summarised it from the abstract only.
- This was a lab model of infant formula, not a study in babies. It can't show how lecithin affects real infant digestion.
Who paid
- Authors work at
- Dalian Polytechnic University, China; Nanchang University, China
The paper
- Title
- Lecithin alleviates protein flocculation and enhances fat digestion in a model of infant formula emulsion
- Type
- Study
- Evidence
- Animals and lab studies
- Summarised from
- Abstract only
- Cite
- Zhu X, Wang Q, Leng Y, et al (2021). Lecithin alleviates protein flocculation and enhances fat digestion in a model of infant formula emulsion. Food chemistry. doi:10.1016/j.foodchem.2020.128918PubMed 33385913DOI
Summary written 26 Sep 2026. Check it against the paper before it changes what you eat. How we summarise papers · Report an error