Multivitamins by Viva Naturals. Viva Naturals Vit B12 and vitamin d3 5000 iu gummies deliver a high potency dosage of D3 and b12 5000mcg, in a tasty fruit punch flavored gummy. These soft and easy to chew energy gummies are packed with b12 methylcobalamin, the natural form of Vitamin B12, for increased bioavailability. * Vitamin B12 plays an important role in the metabolism of fats and proteins into energy production, and also assists in the formation of red blood cells. * Just one serving of Viva Naturals Vitamin D3 and Vitamin B gummies a day can provide a wide range of important health supporting benefits to your daily wellness routine.