Nuts do not technically contain ferritin, but some can support ferritin stores by contributing iron to the diet. Pumpkin seeds, sesame, tahini, cashews, almonds, and certain seeds are among the better plant-based options in this context. However, the iron found in nuts and seeds is less bioavailable than heme iron from animal sources. For that reason, nuts alone should not be expected to correct significant ferritin deficiency. Still, they can be useful as supportive components in a balanced diet. Pairing them with vitamin C-rich foods may improve overall iron absorption. The most accurate phrase is not “nuts containing ferritin,” but “nuts and seeds that may support ferritin stores through their iron content.”