With a vitamin B12 level of 80 pg/mL, switching to injections is an excellent and highly effective choice. It bypasses the digestive system entirely, ensuring your body gets the nutrients it needs. Your doctor will likely prescribe generic cyanocobalamin injections. A typical schedule is 1,000 micrograms weekly for four weeks, followed by once-monthly maintenance shots. Please consult your physician to obtain this prescription and discuss the best schedule for you.

The safety and dosage of B12 tablets for a 12‑year‑old child are not well established. A paediatrician should evaluate the child’s medical needs and prescribe the appropriate form and dose if supplementation is required. Do not adjust the dose yourself; the doctor will determine the safest and most suitable option.

Since your vitamin D and B12 levels are normal, the pain is likely related to mechanical factors rather than a nutritional deficiency. In active individuals, knee pain during running or walking is commonly caused by conditions like patellofemoral pain syndrome (often called runner?s knee), minor tendonitis, or muscle imbalances. I recommend resting the joint, wearing supportive footwear, and consulting a healthcare provider or physical therapist. They can perform a physical exam to help identify the exact cause and get you back to moving comfortably.

Vitamin B12 (like 2B12 tablets) is generally safe for most adults, but whether you can take it for one month depends on your individual needs, current B12 levels, and any medical conditions, so please follow your doctor's advice.

For most young adults, the best vitamin B12 supplement is either methylcobalamin or cyanocobalamin. Methylcobalamin is the active, naturally occurring form that the body absorbs easily, while cyanocobalamin is a very stable and well-studied option. Both standard oral tablets and sublingual tablets (which dissolve under your tongue) are highly effective at restoring healthy B12 levels. A common daily dose of 1,000 micrograms is generally safe and works beautifully. I suggest checking in with your doctor for a simple blood test to find the perfect dose tailored just for you.

2 B12 tablets contain a mix of B vitamins, including methylcobalamin, adenosylcobalamin, B1, B2, B6, and folic acid. They are generally safe for daily use when prescribed for nerve health or vitamin deficiencies. Long-term use is safe if advised by a doctor, but it’s important to monitor vitamin levels through regular blood tests. Always follow your doctor’s instructions, avoid self-medication, and go for periodic check-ups to ensure safe and effective use.