B-vitamin deficiency is a common culprit in low energy, particularly among vegetarians, who may not get enough B12 in their diets. Several of the B-complex vitamins play crucial roles in the breakdown of blood sugar and fats to generate energy. In particular, vitamins B2 (riboflavin), B3 (niacinamide), and pantothenic acid play key roles in what cell biologists call the energy-generating Krebs cycle.
The B-vitamins are also considered to be anti-stress vitamins, protecting against moodiness and irritability. To reduce the chance of causing an imbalance among the B-complex vitamins, it’s always better to take them as a group rather than individually.
(Source: Body & Soul magazine, March 2004. Online at www.bodyandsoulmag.com.)