No significant difference in retention was found between vitD3 and 25OD3 in eggs, but the preparation condition affected the degree of retention (p < 0.05).
There was 39% retention of vitD3 and 25OHD3 in eggs heated in the oven for 40 min, significantly different from 100%.
On average the retention in boiled and scrambled eggs were 82–88% for both vitamers.
It was significantly different from 100% (p < 0.05) for 25OHD3 in scrambled eggs