This disclosure relates to the field of increasing the duodenal flow and absorption of lipophilic nutrients, such as poly-unsaturated fatty acids, enhancing their content in animal products such as meat and milk. This increase is suggested to ameliorate both the health of humans consuming the animal products and the animals themselves. More specifically, this disclosure relates to a process to prepare an oil-in-water emulsion of droplets of lipophilic nutrients encapsulated by a protein-phenol matrix. The formation of the protein-phenol matrix requires both the presence of polyphenol oxidases extracted from specific plants and the addition of a diphenol. The latter emulsion, when given as feed, protects lipophilic nutrients against degradation by microbes present in the rumen of animals so that these non-degraded nutrients can be transferred further in the animal's body. In addition, the latter emulsion may also be used to protect lipophilic nutrients against deterioration during storage or processing (e.g., due to oxidation)
