Genetic Testing May 4, 2026

Personalized Protein: What Your DNA Says About Your Diet After 50

If you’ve hit your fiftieth birthday (or are speeding toward it), you’ve likely heard plenty about the importance of nutrition, especially protein, in maintaining both your physical and mental health. But did you know that your genetic makeup has a lot to say about your protein needs after 50? In this companion to Alan Ogden’s Your Second Fifty podcast episode, we’ll break down how DNA influences your protein requirements, how these variations impact your lifestyle and dietary choices, and what practical steps you can take as you age to stay vibrant and sharp. 

Protein Need: Genetic Determinants

Alan begins the discussion by emphasizing the distinction between genetic ancestry and functional DNA testing. He explains:

“We’re not talking about your ancestry … We’re talking about your DNA and how it relates to something we would call health span … It’s a roadmap of how you can best work through exercise, lifestyle, diet, supplements, all the things that people are confused about.”

This is critical, because according to Alan, DNA is the ultimate blueprint for optimizing your health span—the quality of your healthy years—not just the number of candles on your birthday cake. He shares his professional background in pharmaceutical sciences, nutrition, and longevity studies, describing his own DNA test as “the most important and critical test” he’s ever done, even as a medical professional.

So, what’s the big deal about protein and DNA past fifty? While Alan doesn’t dive into hard numbers, he makes it clear that your unique genetic set strongly influences your dietary needs, including how certain genes affect your ability to process and utilize nutrients like protein and B vitamins. He gives the example of how some people, due to their genetics, have difficulty using methylation genes—impacting cognition and nervous system health.

“We found out that a vast majority [of autistic children] have ineffective methylation genes. They can’t use B vitamins, which are necessary for cognition. They’re necessary for our central nervous system. So by optimizing something glutathione, we’ll talk about that at another time, but optimizing glutathione and getting them proper B vitamins, we saw a tremendous effect and a dramatic reduction in the need for medication.”

Alan makes it clear this DNA-based knowledge isn’t just for medical outliers or rare cases. It’s about your everyday life—what your body needs, and how you can finally stop guessing what’s right for you. As Alan puts it, DNA testing after fifty helps you “enjoy your life to the max and know you’re doing the right things for you.”

Food Choices and Behavioral Outcomes

Your DNA doesn’t just determine your biology—it has a say in your behavior as well. Alan shares a fascinating insight from Laurent’s DNA profile:

“Let’s look at this one here, you know, emotional eating, 100% … This is … how easy it is to read. It’s data. It’s not like mumbo jumbo data that you have to… So what does emotional eating mean? So emotional eating means that when you’re under particular types of stress … your brain is going to send a signal to you that says, I need to eat something, I need to, right? And generally, what we’re trying to satisfy then is not a physical body need. It’s a brain need.”

This is more than a personality quirk; your gene-driven emotional eating patterns can determine what you reach for during demanding moments. According to Alan, the foods we choose under stress—especially those rich in proteins and healthy fats like nuts and seeds—might be a way your brain “drives” your dietary needs to compensate for genetic vulnerabilities or strengths. Laurent recounts a real-life episode at a table tennis tournament where his brain’s craving for dates and nuts lined up with Alan’s genetic prediction.

As you age, understanding this link is key. Alan argues that your DNA can reveal why you crave certain foods, and help you balance brain-driven urges with your physical needs. For some, this might mean extra focus on high-quality protein sources to help offset cognitive or physical risks. For others, it might require strategies to avoid stress-triggered eating that undermines your health span—especially as your body changes with age.

Practical Takeaways and Recommendations

So, what should you do if you’re interested in maximizing your health span and optimizing protein needs after 50? Alan has a clear answer:

“If you haven’t had [a DNA test] before 50, you definitely need it at 50 in order to enjoy your life to the max and know that you’re doing the right things for you.”

Here’s how Alan suggests you get started:

  • Get Functional DNA Testing: Not an ancestry kit, but a comprehensive health-related DNA test. Alan says his test examined more than 220 gene pairs, with more available for those who want extra detail.
  • Read Your Results: According to Alan, the results aren’t mysterious – you get actionable information, spanning approximately 200 pages, covering everything from brain power to emotional eating.
  • Leverage Epigenetics: Alan frames epigenetics as the art of making your genes work for you. DNA risks aren’t fate; with the right diet, exercise, and lifestyle changes, you can tip the scales toward healthy gene expression. “This is not diagnostic. This is just a measure of risk,” Alan explains. “You can now handle the risks that would push you in that direction.”
  • Personalize Your Protein Intake: Whether your genes predispose you to emotional eating or cognitive decline, Alan recommends tailoring your diet with high-quality protein sources—nuts, seeds, and whatever suits your genetics and physical activity needs.
  • Work With Your Doctor: Alan recommends sharing your DNA summary and targeted blood test recommendations with your physician for truly personalized care. This means not settling for generic panels—but insisting on tests that are relevant to your unique genes.

According to Alan, this approach moves you from overwhelmed to empowered. You’re back in the driver’s seat, able to make dietary and lifestyle choices that are grounded in your DNA rather than Internet guesswork or fads. This, Alan says, is how you bridge lifespan into health span—and keep your candle burning bright into your later years.

Conclusion: Make Your Genes Work for You

Turning fifty is a milestone—and an opportunity. As Alan highlights in the podcast, understanding your DNA gives you clarity about your protein needs and how to support both your mind and body as you age. Whether it’s managing emotional eating, customizing your diet, or working with your healthcare team, this approach invites you to live your “Second Fifty” with more confidence and focus than ever.

Ready to discover what your DNA says about protein needs after 50? Order your DNA health span test, dig into your results, and connect them with your daily choices. As Alan points out, this information could help you enjoy more active, inspired years doing what you love. Take the next step for yourself—because your DNA holds the key to your best life after fifty.

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