The coenzymes of nadh dehydrogenase include FMN cofactor, Fe-S cofactor, and coenzyme Q. These three coenzymes work together with nadh dehydrogenase to accomplish the transfer of electrons throughout the respiratory chain. The nadh dehydrogenase first binds to NADH and transfers the high-potential electrons to its FMN cofactor to oxidize NADH and reduce FMN, and then the electrons on the FMNH2 cofactor are transferred to Fe-S, and finally, the electrons on the Fe-S cofactor are passed to coenzyme Q, which transfers the electrons to cytochrome reductase. These coenzymes are indispensable for the body’s metabolism, and if the patient is deficient in coenzymes, the metabolism will be affected and the corresponding disease will appear. Please go to the regular hospital to find a specialist in time, under the guidance of the doctor, so as not to delay the condition.