A color change within the same vial over time is different and concerning
Frequency depends on your needs
You can raise your vitamin B levels by consuming more animal-based foods, fortified foods, or vitamin supplements
Safe Use, Dosage, and NHS Guidance on Vitamin B12 Pills The NHS recommends 1.5 mcg daily for adults, but therapeutic doses for deficiency are much higher oral cyanocobalamin 50150 mcg daily for dietary deficiency, or intramuscular hydroxocobalamin 1 mg for absorption-related causes
Morning administration is often recommended for several reasons: Consistency with routine : Taking supplements with breakfast helps establish a regular habit, improving adherence Perceived energy support : Although B12 doesn't provide immediate energy, taking it in the morning aligns with the body's natural circadian rhythm when energy demands are higher Avoiding potential sleep concerns : For individuals who report feeling more alert after taking B12, morning dosing eliminates any theoretical risk of evening alertness Absorption considerations are important when choosing timing