You can eat. Regarding the germination of iron stick yam, one thing is certain: yam has begun to grow in life, and germination will lead to a decline in nutrients, and the loss of nutrients will be small if it is slightly germinated. Germinated iron yam does not produce toxins like potatoes. Yam and potato are different species in plant classification. At present, there is no report of poisoning caused by eating sprouted iron bar yam.