What about supplements such as CoQ10, blue green algae, green barley, vitamins, minerals and hydrochloric acid?

CoQ10, vitamins and minerals are all coenzymes, which means they need energy and another enzyme to work. Blue green algae and green barley are helpful, but since they are not enzymes, they cannot help us absorb nutrients from everything we eat. Hydrochloric acid can help digestion but is not an enzyme nor does it act as an enzyme.