The weight of a man at the time of conception may determine the appetite of the offspring; so says a report of recent study.
The study compared the spermatozoa of obese men before and after surgery and showed differences in the epigenetic markers for genes for appetite. This means that the information carried in the genes in the sperm for appetite changed with weight. A fat dad at the time of conception of an offspring could predispose the offspring to obesity but this is not likely to happen he loses weight before the conception.
The study was done by Romain Barres of the University of Copenhagen who advises that men may have to prepare themselves for a baby by change of lifestyle the way women change their lifestyle during pregnancy.
The report was published recently in the Journal of Cell Metabolism.