In Western Canada, many protein sources such as peas and lentils which are lower in methionine (total methionine, tMet) than traditional protein sources are being used with greater frequency and in greater amounts. To ensure these diets are properly balanced, an experiment was conducted to establish the methionine requirement for 25-50 kg pigs. The requirement for female pigs was 0.25% of the diet and was slightly higher for barrows, at 0.29%. Ileal digestibility of methionine (d met) was 83%. The tMET requirement as a percent of lysine was 23% in females and 27% in males.