GSTM1 and anemia (phenotype): Reduced anemia among women receiving private fishpond (DID: −29.5pp*) and group fishpond (DID: −8.2 pp) vs. comparison group, minimal change in vegetable intervention (+0.2 pp) Higher Hb among women in all groups (private: +0.01 g/dL, group: +0.235 g/dL, vegetable: +0.035 g/dL)