Selecting the right supplement can be a labyrinthine task. Vitamin B12 is no exception. With expert voices leading the way, let's delve into the essential factors to pay attention to when shopping for a B12 supplement.

Assess your need: "Only take a supplement if you need it," advises Wolfram. The golden rule of supplementation is rooted in necessity. Before introducing a B12 supplement to your routine, first determine if your body truly requires it through a blood test and conversation with your doctor. If you are struggling with B12 deficiency, consulting a registered dietitian is also a good idea, as they offer tailored guidance on the appropriate form and dosage.

Form of vitamin b12: The myth of methylcobalamin's superiority over cyanocobalamin requires debunking, as Wolfram clarifies. "Cyanocobalamin is the well-researched form of vitamin B12 supplements and recommended for daily doses," she emphasizes. This dispels misconceptions, underscoring the significance of evidence-backed decisions.

Dose: If your diet includes animal products, fortified foods, or a basic multivitamin, your B12 levels might already be adequate, advices St. Pierre. Most supplements contain way more than the daily recommended value of vitamin b12 (which is just 2.5 mcg), meaning you don't necessarily need to take the supplement every day.

While it's likely safe to consume 1,000-2,000 mcg of B12 daily, it's also largely unnecessary. For those following a vegan lifestyle, a daily dose ranging from 5 to 100 micrograms of cyanocobalamin has been validated.

Type of supplement: Langer reminds that B12 supplements exist in various forms, including injections, capsules, and nasal sprays. Injections are typically reserved for those grappling with deficiency and absorption issues, while capsules and nasal sprays offer alternative paths to achieving adequate B12 levels for healthy individuals.