High-yielding cowpea (Vigna unguiculata) cultivars were analysed for major changes in seed protein types, amino acid profiles and antinutritional factors content. As usual, the globulins constitute the major seed proteins (493.2–573.3 g kg 1 total seed protein), followed by albumins (201.0–248.0 g kg 1 ), basic glutelins (119.1–154.3 g kg 1 ), acid glutelins (82.4–92.3 g kg 1 ) and prolamins (13.2–20.2 g kg 1 )...