Solgar methylcobalamin (vitamin b12) 5000 mcg nuggets support general well-being b12 plays different roles in the body to support energy metabolism and assists in the release of energy from food. Promote nervous system health and support energy metabolism. solgar sublingual methylcobalamin nuggets melt under the tongue. promoting normal blood cell formation and development. Naturally occurring, metabolically active the body can readily absorb b12 as cobalamin, but must further convert to a coenzyme to become metabolically active. solgar's coenzyme vitamin b12 is bioidentical to one of the two active forms in the body.