Chapter 10- nutrients involved in energy metabolism and blood health. Our bodies require vitamins and minerals to produce energy. Although vitamins and minerals do not directly provide energy, we are unable to generate energy from macronutrients without them. B vitamins (or b complex vitamins) are particularly important for assisting in energy metabolism. They include; thiamin, riboflavin, vitamin b6, niacin, folate, vitamin b12, pantothenic acid and biotin. 10. 1 p 353 for functions, recommended intake, toxicity and deficiency symptoms and table. 10. 2 p 358 for common foods containing rda or ai. Activate enzymes and assist them in the metabolism of carbohydrates, fats, and amino acids; the repair and replication of dna; cell differentiation; the formation and maintenance of the central nervous system; the formation of blood. Acting as coenzymes, b vitamins, assist enzymes in metabolizing nutrients (such as carbohydrates, fats and proteins) to produce energy.