Vitamin B12 Methylcobalamin 5000 mcg from Webber Naturals supports the healthy structure and function of the nerves and brain. This sublingual tablet dissolves under the tongue and is active immediately upon absorption. B12 is necessary for heart health, energy, nervous system function, and also helps with memory and learning.Methylcobalamin is the coenzyme form of vitamin B12 which supports the healthy structure and function of the nerves and brain. Vitamin B12 is best known for helping the body produce red blood cells, but it is also essential for energy production, DNA, healthy nerves, sleep regulation, memory, and overall brain health. As a partner with folic acid and B6, vitamin B12 supports heart health, by lowering homocysteine; elevated homocysteine is a risk factor for coronary heart disease.Reports suggest that vitamin B12 deficiency is widespread, not only among older people but also in those between 25 and 50 years of age. Fatigue, pale skin, lack of appetite, nausea, weakness, hearing difficulties, memory loss, and other impaired mental functions may indicate a B12 deficiency. B12 is found primarily in foods of animal origin, so strict vegetarians and vegans risk B12 deficiencies.B12 levels can be effectively increased by supplementing with sublingual methylcobalamin, a highly bioavailable form of B12, in this 5000 mcg tablet from Webber Naturals. It has a natural cherry flavour, is a convenient alternative to B12 injections, and is suitable for vegetarians.