Vegetarian sources of B12 include chlorella, nori, nutritional yeast and certain mushrooms, but many vegans and vegetarians have insufficient levels of B12 because its not widely found in plants. According to Mullane, not getting enough B12 can result in issues like anaemia, fatigue and more intense symptoms including shortness of breath, palpitations, pale skin, muscle weakness, numbness and tingling in hands or feet, blurred vision and memory loss
Daily sunscreen is essential to protect your progress and prevent new dark spots from forming
Once your B12 levels are back to normal, or if a change in your diet gives your body all the B12 it needs, you may be asked to stop taking these tablets
Some researchers report stability up to 6-8 weeks under strict sterile conditions, but the conservative recommendation is 4 weeks