Is It Aging or a Vitamin B12 Deficiency? Signs You Shouldn't Ignore

Are you feeling a little more forgetful lately? Maybe your energy isn't what it used to be, or you've noticed some unusual tingling or numbness. It's easy to chalk these things up to getting older.

But what if aging isn't the whole story?

In Episode 114 of Nourish to Flourish, Megan, Registered Dietitian and trainer at Fitness Lying Down, discusses a nutrient deficiency that can sometimes disguise itself as the natural aging process: vitamin B12 deficiency.

And as Megan explains, understanding what's happening inside your body can make a big difference in how you approach your health.

Watch Nourish to Flourish | Episode 114

What Does Vitamin B12 Actually Do?

Vitamin B12 is an essential nutrient that plays several important roles in keeping your body functioning properly.

Some of its primary responsibilities include:

• Energy metabolism: Helping your body use the energy obtained from food.
• Red blood cell formation: Supporting healthy blood production and helping prevent certain types of anemia.
• Nerve function: Maintaining the health and proper functioning of your nervous system.
• Cognitive health: Supporting neurological processes involved in memory and thinking.

When your body doesn't have enough vitamin B12, these important functions can be affected. And the symptoms aren't always what you might expect.

Can Vitamin B12 Deficiency Mimic Aging?

Here's where things get interesting.

As we get older, we naturally experience changes in how our bodies function. Megan compares this to a car that's accumulated a few miles. Maybe there's a little rust, or the check engine light comes on more frequently than it used to.

Some changes are expected. But that doesn't mean every symptom should automatically be attributed to aging.

Vitamin B12 deficiency can contribute to symptoms that overlap with conditions commonly associated with getting older.

These can include:

• Unexplained fatigue or weakness
• Tingling or numbness in the hands and feet
• Nerve-related discomfort or neuropathy
• Difficulty remembering information
• Problems with concentration or cognitive function
• Anemia and its associated symptoms

In some cases, neurological symptoms related to B12 deficiency can even resemble those associated with more serious cognitive conditions.

That doesn't mean every memory problem or instance of fatigue is caused by low vitamin B12. However, it does mean that a possible nutrient deficiency is worth discussing with a healthcare professional rather than simply assuming it's part of getting older.

What Foods Are High in Vitamin B12?

One of the first places Megan encourages us to look is our diet.

Vitamin B12 is found naturally in several animal-based foods, including:

• Beef and other meats
• Fish and seafood
• Eggs
• Organ meats, such as liver
• Dairy products

If your eating habits don't regularly include these foods, you may be at greater risk of falling short on vitamin B12.

For individuals who follow vegetarian or vegan eating patterns, fortified foods or appropriate supplementation may be especially important.

But here's the catch: getting enough vitamin B12 in your diet doesn't necessarily guarantee that your body is absorbing enough of it.

Why Vitamin B12 Absorption Can Become More Difficult With Age

This is one of the most important points Megan discusses in this episode.

Our bodies need adequate stomach acid to help release vitamin B12 from the proteins in the foods we eat. Once released, B12 goes through additional steps in the digestive system before it can be absorbed.

As we age, some individuals experience changes in stomach acid production or digestive function that can make this process less efficient.

Several other factors can also affect vitamin B12 status:

• Acid-reducing medications: Long-term use of proton pump inhibitors (PPIs) and certain other acid-reducing medications can interfere with the absorption of food-bound B12.
• Gastric bypass surgery: Changes to the digestive tract can affect the body's ability to absorb nutrients, including vitamin B12.
• Digestive conditions: Certain gastrointestinal disorders can interfere with normal nutrient absorption.
• Changes in dietary intake: Eating fewer B12-rich foods can increase the likelihood of inadequate intake.

Megan also mentions hormonal birth control as another factor that may influence measured B12 levels, although changes in blood levels do not necessarily indicate a true deficiency.

This is why nutrition isn't always as simple as looking at what someone eats. We also have to consider what their body can actually absorb and use.

Should You Take a Vitamin B12 Supplement?

If a deficiency is identified, adding more vitamin B12 may be part of the solution. But the appropriate approach depends on why the deficiency developed in the first place.

For someone who simply isn't consuming enough B12-rich foods, dietary changes or oral supplementation may be helpful.

For someone with an absorption problem, however, the solution may require a different supplementation strategy. High-dose oral supplements can work in many cases, while some individuals may need B12 injections or other medically guided treatment.

The important thing is to identify the underlying issue rather than guessing.

If you're experiencing persistent fatigue, numbness, tingling, or unexplained changes in memory, speak with your healthcare provider about appropriate evaluation and testing.

And if you're taking a prescribed medication that reduces stomach acid, don't discontinue it without discussing it with your healthcare provider.

Healthy Aging Starts With Understanding Your Body

At Fitness Lying Down, we spend a lot of time helping people understand that getting older doesn't mean they have to stop getting stronger, moving well, or challenging themselves.

Nutrition is an important part of that conversation, too.

Sometimes the answer isn't simply pushing harder, accepting how you feel, or adding another supplement to your daily routine.

Sometimes it's asking better questions about what's happening inside your body.

And that's really the message Megan wants us to take away from this episode: Sometimes what appears to be aging may actually have an underlying nutritional explanation.

Understanding the difference can help you make more informed decisions about your health.

Take the Guesswork Out of Your Nutrition

Are you getting the nutrients your body needs? Are your eating habits supporting your energy, strength, and long-term health?

Our Registered Dietitian, Megan, can help you take a closer look at your nutrition through a Nutrition Blueprint session at Fitness Lying Down.

Rather than chasing the latest diet trend or trying to figure everything out on your own, you'll have an opportunity to discuss your habits, challenges, and goals with a nutrition professional.

Learn More About Our Nutrition Blueprint

Because improving your health starts with understanding what your body needs.

And as Megan reminds us, when you know better, you can do better!