Some people also consider it because they do not tolerate stimulant-based weight-loss products well or are not candidates for GLP-1 medications
(2019) Effects of folic acid and vitamin B12, alone and in combination on cognitive function and inflammatory factors in the elderly with mild cognitive impairment: a single-blind experimental design
An oral supplement has to travel through your digestive tract, survive stomach acid, bind to a protein called intrinsic factor, and be absorbed in the small intestine
The NHS lists the common symptoms as: Persistent tiredness, breathlessness and a lack of energy Pins and needles, numbness or tingling in the hands and feet A sore, red tongue and mouth ulcers Problems with memory, concentration and mood Pale or slightly yellow-tinged skin If several of these sound familiar and you are on long-term metformin, that is a good reason to ask your GP for a B12 blood test rather than to book an injection straight away
Some people absorb and store vitamins more efficiently than others, which means they might need injections less frequently