*Faecal analysis should be carried out to rule out parasitic causes such as [[Trichuris vulpis|whipworms]], [[Ancylostoma caninum|hookworms]] and [[Giardia|''Giardia'']].
+
*Faecal analysis should be carried out to rule out parasitic causes such as [[Trichuris vulpis|whipworms]], [[Uncinaria stenocephala|hookworms]] and [[Giardia|''Giardia'']].
*Serum folate level decreases with proximal small intestinal [[Inflammation - Pathology|inflammation]].
*Serum folate level decreases with proximal small intestinal [[Inflammation - Pathology|inflammation]].
*Serum cobalamin level decreases with distal small intestinal [[Inflammation - Pathology|inflammation]].
*Serum cobalamin level decreases with distal small intestinal [[Inflammation - Pathology|inflammation]].