VEGAN-FRIENDLY AND FREE FROM ?. Our tablets are free from lactose, wheat, yeast and soya and are suitable for those on vegan and vegetarian diets. 1000MCG VITAMIN B12. VITAMIN B12 BENEFITS ?. Vitamin B12 is important in many ways and has many benefits, including its ability to help maintain a healthy immune system, help normal brain function and help to keep your energy levels high, therefore, helping you feel less tired.