Dr. Gerald E. Lobley gained his BSc (Biochemistry) and Ph.D. from the University of Birmingham, UK. His career move to the Rowett Institute (Scotland) allowed both direct and collaborative studies across a range of species including cattle (bulls, steers, dairy cows), sheep, lactating goats, pigs, cats, rodents and humans.  The focus was on the impact of nutrition on animal production and mammalian health. The approaches involved use of radio- and stable-isotopes to monitor protein turnover, urea kinetics and amino acid metabolism at both the whole body and tissue level, the latter often involving the trans-organ arterio-venous technique. Although these studies have involved a range of individual amino acids, a recurring theme is methionine metabolism, with emphases on involvements in transmethylation and homocysteine kinetics, plus metabolism of methionine substitutes, notably HMTBA and DL-Met products.  Overall, his studies have resulted in more than 200 papers and review articles.