Your Immune System Is Aging, Too: Jeff Bland on Food, Immunity and Longevity
ONE-MINUTE READ
Jeff Bland has a new article worth reading: How the Immune System Powers Your Longevity.
We have followed Bland's work for years. Long before “food as medicine” became fashionable, he was helping clinicians think seriously about nutrition, metabolism, systems biology and the way food interacts with human physiology. His influence on functional medicine and personalized nutrition has been enormous.
His latest work through Big Bold Health brings those ideas into the longevity conversation through immune aging, regulatory T cells, the microbiome, omega-3-derived resolving mediators and food-derived polyphenols.
What we like most is the direction of the work. Food is being studied not simply as calories or macronutrients, but as a source of compounds that interact with immune cells, microbial metabolism, gene regulation and cellular signaling.
Himalayan Tartary Buckwheat sits at the center of much of that research. Big Bold Health has already published early human work and has now completed a much larger randomized, placebo-controlled trial involving approximately 850 participants using its sprouted HTB Activ™ ingredient. Results are expected later in 2026.
We are excited to see where this goes.
There are people whose work you notice because they have a new product.
Jeff Bland is someone we have continued following because he helped shape the conversation itself.
For decades, he has pushed medicine to look more seriously at nutrition, metabolism, inflammation, immune function and the biological effects of food. He co-founded the Institute for Functional Medicine and has been one of the most influential voices behind the idea that physiology is interconnected and that nutrition belongs inside medicine rather than somewhere outside of it.
His recent Big Bold Health article, How the Immune System Powers Your Longevity, is very much in that tradition.
The Immune System Is More Than a Defense System
Most of us first learn about immunity as protection from infection. That is only part of its job.
Immune cells communicate constantly with other tissues. They participate in wound healing, inflammatory regulation, metabolic signaling and surveillance for abnormal cells. Their signals reach the cardiovascular system, brain, liver, adipose tissue and gastrointestinal tract.
Like every other major biological system, immunity changes with age.
Researchers use the term immunosenescence to describe age-related changes in immune function. Some immune responses become less efficient while chronic low-grade inflammatory signaling can become more prominent. That combination is increasingly important in research on healthy aging.
Bland's article asks an interesting question: if immune aging is part of biological aging, how much of that biology can be influenced by the way we live and eat?
From Cellular Reprogramming to Nutritional Signaling
Bland begins with Shinya Yamanaka's landmark work showing that mature cells can be reprogrammed into a pluripotent state through a small group of transcription factors.
The original work was published in 2006, and Yamanaka and John Gurdon received the 2012 Nobel Prize in Physiology or Medicine for discoveries showing that mature cells could be reprogrammed.
That research changed how scientists thought about cellular identity and helped open the door to modern epigenetics and aging research.
Bland takes the conversation in a nutritional direction. Gene expression and cellular behavior are dynamic, and food is one of the many environmental inputs capable of influencing those systems.
That has been a recurring theme throughout his career.
Regulatory T Cells and Immune Balance
Bland gives particular attention to regulatory T cells and FOXP3, a transcription factor central to their development and function.
Regulatory T cells help keep immune responses appropriately controlled and are important to immune tolerance. Their biology is being studied in aging, autoimmunity, cancer and chronic inflammatory disease.
Epigenetic regulation is part of that story, which is why Bland connects food-derived compounds with gene expression and immune function.
This is one of the areas where modern nutrition science has become especially interesting. We are no longer limited to asking whether a food contains vitamin C or magnesium. Researchers can now look at how nutrients and phytochemicals influence signaling pathways, microbial metabolites and gene regulation.
Food as Biological Information
This is the part of Bland's work that has always resonated with us.
Food is not simply calories, protein, carbohydrate and fat. Plants contain thousands of compounds that interact with human biology.
Polyphenols are a good example. Many are transformed by intestinal microbes before they ever reach the circulation. Those microbial metabolites can have biological activity of their own. Other polyphenols interact with enzymes and signaling pathways involved in oxidative stress, inflammatory regulation and cellular defense.
The old description of polyphenols as little more than “antioxidants” misses much of what makes them interesting.
Berries, herbs, spices, cocoa, tea, coffee, olive oil, legumes, nuts, seeds and other plant foods each bring different phytochemicals into that system.
Himalayan Tartary Buckwheat is one of the more unusual additions to the list.
Why Himalayan Tartary Buckwheat Has Bland's Attention
Himalayan Tartary Buckwheat, or HTB, is unusually rich in polyphenols, particularly rutin, along with quercetin and many additional phytochemicals.
Big Bold Health developed a proprietary sprouted form called HTB Activ™ using an heirloom variety of Tartary buckwheat grown with U.S. farming partners.
The seeds are sprouted before being dried and milled. Sprouting matters because germination changes plant metabolism and can alter concentrations of flavonoids and other bioactive compounds.
Big Bold Health reports more than 100 naturally occurring polyphenols in HTB Activ™.
What makes this more interesting to us than another isolated botanical extract is that the company is studying a complex food matrix in humans.
For a deeper look at HTB itself, see our recent HormoneSynergy® Mini Stack on Himalayan Tartary Buckwheat and Jeff Bland's food-as-medicine work.
Human Research Is Already Underway
Tartary buckwheat has been studied in human nutrition research for years.
A randomized dietary trial published in Nutrition Research studied 165 people with type 2 diabetes who incorporated Tartary buckwheat into their diet. After four weeks, researchers reported reductions in fasting insulin, total cholesterol and LDL cholesterol compared with controls.
Big Bold Health later published a 2024 pilot examining a polyphenol-rich formulation built around compounds naturally present in Tartary buckwheat. Investigators looked at DNA methylation, epigenetic aging measures and immune-related pathways.
The findings were intriguing enough to lead to something much larger.
Big Bold Health has now completed a randomized, placebo-controlled trial involving approximately 850 participants receiving a clinical dose of sprouted Himalayan Tartary Buckwheat as HTB Activ™.
Results are expected later in 2026.
We are looking forward to seeing them.
Epigenetics Makes the Food Conversation More Interesting
Epigenetics refers to chemical changes that influence how genes are expressed without changing the underlying DNA sequence.
Nutrition is one of many environmental influences capable of interacting with these regulatory systems.
This is part of what makes food-as-medicine research so much more interesting now than it was 30 years ago. Instead of limiting the question to deficiency prevention, researchers can look at signaling, metabolism, immune function and gene regulation.
The fact that a food-derived compound can influence one of these systems does not make it a drug. It does make the biology worth studying.
Omega-3s and the Resolution of Inflammation
Bland also discusses omega-3 fatty acids and specialized pro-resolving mediators, or SPMs.
This is another area we follow closely at HormoneSynergy®.
Inflammation is not simply switched on and then allowed to fade away. The resolution of inflammation is an active biological process, and compounds derived from EPA and DHA participate in that signaling.
This gives omega-3 fatty acids a role that goes well beyond the older language of “anti-inflammatory fats.”
For patients who do not regularly eat fatty fish or whose clinical situation supports supplementation, omega-3s can be a practical part of a broader nutrition plan.
The Microbiome Connects Food and Immunity
The gut may be one of the most important meeting places between food and immune biology.
Dietary fibers and other fermentable substrates feed intestinal microbes, which produce metabolites including short-chain fatty acids such as butyrate.
Butyrate interacts with intestinal cells and immune cells and plays an important role in maintaining the intestinal environment.
Polyphenols interact with the microbiome as well. Gut microbes transform many polyphenols into new compounds, while dietary polyphenols can influence the microbial environment.
This is one of the reasons Bland's approach remains so relevant. Food is not simply digested and absorbed. It enters a much larger biological ecosystem.
Where Big Bold Health Fits
Big Bold Health feels like a natural continuation of Bland's earlier work.
The company has taken an unusual food, developed a standardized sprouted ingredient and begun studying it in human trials.
That combination of agriculture, nutrition and clinical research is exactly what makes the project interesting to us.
HormoneSynergy® carries several Big Bold Health products built around Himalayan Tartary Buckwheat and HTB Activ™.
HTB Rejuvenate® Superfood is the most food-oriented option, combining Himalayan Tartary Buckwheat with a broader nutritional shake format.*
Big Bold Health Immunity Chews provide HTB Activ™ in a convenient chew along with vitamin C, vitamin D, magnesium and zinc.* We have tried these ourselves and they happen to be exceptionally good.
Microbiome Rejuvenate® combines HTB Activ™ with ingredients selected around gut and microbiome support.*
Immune Rejuvenate®, formerly HTB Rejuvenate®, provides a more concentrated polyphenol-oriented formulation built around Himalayan Tartary Buckwheat.*
They are different ways of bringing the same larger food-as-medicine concept into a daily routine.
What Bland Gets Right About Longevity
One of the things we like most about Bland's article is where it eventually lands.
Polyphenol-rich foods. Marine omega-3s. Fermented foods. Prebiotic fiber. Movement. Stress regulation. Social connection. Sleep.
These are not fringe ideas. They are part of the same larger foundation that repeatedly appears in cardiovascular, metabolic and healthy-aging research.
The newer molecular science does not make those fundamentals obsolete. It helps explain why they matter.
That is an important shift in longevity medicine.
We do not need to choose between sophisticated biology and basic health behaviors. The biology increasingly helps us understand the behaviors.
Read Bland's Article
Rather than reducing his argument to a few paragraphs here, we recommend reading the original:
It is a good example of why we have followed Jeff Bland for so many years.
He continues to connect nutrition with larger questions about metabolism, immunity and aging without losing sight of food itself.
The HormoneSynergy® Take
We are excited about this work.
Jeff Bland has spent much of his career moving nutrition closer to medicine, and Big Bold Health feels like another chapter in that same effort.
Himalayan Tartary Buckwheat is particularly interesting because it brings together food chemistry, polyphenols, the microbiome, immune biology and human clinical research.
The larger randomized trial now underway may tell us much more about what HTB Activ™ can do in people, and we will be watching closely when the results are published.
In the meantime, we think Bland's broader message is worth hearing.
Food participates in biology.
The more we learn about metabolism, immunity, the microbiome and gene regulation, the more interesting that simple idea becomes.
Explore Big Bold Health at HormoneSynergy®
Frequently Asked Questions
Does the immune system change with age?
Yes. Age-related changes in immune-cell function, inflammatory signaling and immune responsiveness are well recognized and are often described as immunosenescence and inflammaging.
Why is Jeff Bland focused on immune aging?
Immune cells communicate with many other tissues and participate in inflammatory regulation, metabolic signaling and tissue repair. Bland's work explores whether nutrition and other lifestyle inputs can influence these age-related changes.
Can food influence gene expression?
Yes. Nutrients and food-derived compounds can influence cellular signaling and gene regulation. Polyphenols are one group of food compounds being studied for these effects.
Why is Himalayan Tartary Buckwheat interesting?
Himalayan Tartary Buckwheat is unusually rich in polyphenols, particularly rutin, along with many other phytochemicals. Big Bold Health is studying its proprietary sprouted HTB Activ™ ingredient in human clinical research.
Has HTB Activ™ been studied in humans?
Yes. Big Bold Health has published an earlier human pilot and has completed a much larger randomized, placebo-controlled trial involving approximately 850 participants. Results from the larger study are expected later in 2026.
What are Big Bold Health Immunity Chews?
Big Bold Health Immunity Chews provide HTB Activ™ along with vitamin C, vitamin D, magnesium and zinc in a chewable format. HormoneSynergy® carries them along with several other Big Bold Health HTB products.
Selected Reading
- Bland JS. How the Immune System Powers Your Longevity. Big Bold Health.
- Perlmutter A, Bland JS, Chandra A, et al. The Impact of a Polyphenol-Rich Supplement on Epigenetic and Cellular Markers of Immune Age: A Pilot Clinical Study. Frontiers in Nutrition. 2024.
- Qiu J, et al. Dietary Tartary Buckwheat Intake Attenuates Insulin Resistance and Improves Lipid Profiles in Patients With Type 2 Diabetes: A Randomized Controlled Trial. Nutrition Research. 2016.
- Big Bold Health. Current clinical-trial update on its approximately 850-participant randomized, placebo-controlled HTB Activ™ study.
This article is for educational purposes and is not individualized medical advice. Nutrition and supplement choices should be considered in the context of diet, medical history, medications and individual health goals.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.
This article is part of the HormoneSynergy® Longevity Medicine education series covering preventive cardiology, metabolic health, hormone optimization, body composition, and advanced diagnostics for healthy aging.
Return to the Longevity Medicine Guide →