Tired of the energy slump? Maybe it's time to have a chat about the underdog of vitamins: Vitamin B12. This little powerhouse is instrumental in producing red blood cells, firing up your mitochondria for energy production, and ensuring your brain-light stays on.

Feeling more run of the mill than Usain Bolt recently? You might be staring down the barrel of a Vitamin B12 deficit, which can cause fatigue, weakness, and even the dreaded anemia.

Well, my fine-feathered friend, here's the rub: Your body can't produce Vitamin B12. It's the J to your PB, the Bert to your Ernie - indispensable. And it needs an exterior source - food or supplements.

Meat lovers can raise a glass (of alternative milk) to red meats like beef and pork as they pack a B12 punch. For our pescatarians, fatty fish like salmon are not only omega-3 powerhouses but B12 hotspots too.

Think eggs are just for the gym rat, protein shake brigade? Think again! Even a humble egg can provide you with a B12 jolt and it’s cracking with other vitamins and minerals as well.

For our lactose loyals, embrace Greek yogurt and other dairy products. These creamy delights are swimming in B12 and offer other crucial nutrients.

Are you more the fancy-pants, lobster for lunch kind of person? Well, aren't you lucky, B12 is all over that! Plus, shellfish are well-dressed in protein, vitamins, and minerals.

What about the vegans in our midst? Fear not, nutritional yeast, your favorite flavor booster, is your savior-as long as it’s fortified.

And since we're talking alternatives, how about some non-dairy milk? It doesn’t come with B12 on tap, but you’ll find it in fortified versions. Just another reason to love these dairy alternatives.

Remember, the recommended daily dose of B12 for adults is 2.4 micrograms, and it takes a little bump upward to 2.6 and 2.8 micrograms for our expecting and breastfeeding moms.

Vitamins are not one-size-fits-all, though, and some bodies might need a little more B12 magic than others. So grab your health wings and have a chat with your healthcare provider before diving headfirst into any new supplement regime.

Remember, from the unassuming egg to the swaggering lobster, B12 heroes are all around us. So let's go shopping smarter, eating better, and shaking off the fatigue! Parts of this article reviewed and approved by Ashley Braun, MPH, RD, certified dietitian and public health professional.