Trehalose and Longevity
Summary
- Trehalose is a naturally occurring sugar found in foods such as mushrooms, seaweed, and yeast.
- Trehalose is broken down by the enzyme trehalase, primarily in the small intestine and also in other tissues.
- Preclinical research suggests trehalose may support cellular defenses against oxidative stress.
- Trehalose is widely studied for its ability to influence cellular recycling pathways involved in proteostasis, including autophagy-related processes.
- In animal models of aging, trehalose has been associated with lower inflammatory signaling, often discussed in the context of “inflammaging.”
- Preclinical studies suggest trehalose may help reduce the buildup of damaged or misfolded proteins linked to age-related loss of proteostasis.
- Evidence for brain, liver, and kidney “healthy aging” effects is currently strongest in preclinical models; human evidence is more limited and generally based on biomarkers.
Trehalose Impacts Aging Via:
- Loss of proteostasis
- Disabled macroautophagy
- Inflammaging
- Altered cellular communication
- Mitochondrial dysfunction
The Role of Trehalose in Aging and Longevity
Trehalose is a naturally occurring sugar made of two glucose molecules (a non-reducing disaccharide). It is found in foods such as mushrooms, seaweed, and yeast, and it is also produced by many bacteria, fungi, plants, and some invertebrates, where it can function as an energy reserve and stress-protective carbohydrate.
In humans, trehalose is broken down by the enzyme trehalase during digestion. Beyond its nutritional role, trehalose has been widely studied in preclinical research for its potential effects on cellular stress pathways involved in aging biology, including proteostasis and autophagy-related processes.
Trehalose Versus Sucrose
Sucrose is another common naturally occurring disaccharide found in fruits and vegetables, and it is the main constituent of table sugar. Unlike trehalose (glucose + glucose), sucrose is composed of one glucose molecule and one fructose molecule.
Because trehalose is digested differently from sucrose, it has been studied for potential differences in post-meal glucose responses. In a double-blind, randomized controlled trial in healthy volunteers, daily trehalose intake, was associated with improved glucose tolerance in participants who had relatively higher post-meal glucose levels within the normal range, compared with sucrose (R).
Trehalose and Longevity
Trehalose has been studied for its potential to influence core biology-of-aging pathways, largely through preclinical research. In the nematode Caenorhabditis elegans, trehalose treatment starting in early adulthood extended mean lifespan by 32%, alongside improvements in several age-associated measures linked to stress resistance and protein homeostasis (R).
Mechanistically, trehalose is often discussed in the context of proteostasis and cellular recycling pathways. Multiple preclinical studies report that trehalose can modulate autophagy-related processes and protein quality control, including reductions in protein aggregation in neurodegeneration-relevant models. (R; R; R; R)
Trehalose has also been linked to cellular antioxidant and stress-response signaling. In experimental models, trehalose has been reported to regulate the p62–Keap1/Nrf2 axis and reduce markers of oxidative stress, including reactive oxygen species, which are implicated in age-related cellular damage. (R)
Overall, these findings are primarily from preclinical research and help explain why trehalose is being explored for its relevance to aging-related cellular maintenance pathways. (R)
Preclinical Research on Trehalose and Healthy Aging
Trehalose and Brain Health
As people age, the brain can undergo changes in structure, blood flow, and cellular stress resilience that may affect memory and learning. In preclinical aging models, trehalose has been studied for its potential to support cognitive function and stress-response pathways.
In a mouse model of D-galactose, induced aging, trehalose was reported to improve learning- and memory-related behavioral outcomes and to activate antioxidant defense signaling linked to Nrf2, a key regulator of cellular responses to oxidative stress. (R)
Trehalose has also been studied in experimental systems relevant to neurodegeneration and proteostasis. In primary neuron models, trehalose enhanced autophagy-related clearance of tau, a protein that can accumulate abnormally in Alzheimer’s disease and related disorders. (R)
In aged mouse brain, trehalose has been reported to improve markers of autophagy regulation and to support behavioral outcomes, with the authors describing exercise-like effects in that model. (R)
Overall, these findings support trehalose as a compound of interest for brain aging biology, primarily through pathways related to autophagy, proteostasis, and antioxidant stress responses, with the important caveat that these results come from preclinical models rather than human cognition studies. (R; R)
Daily trehalose supplementation has also been studied in aged rat brain for its potential effects on antioxidant and inflammation-related signaling, including changes linked to SIRT1 regulation. (R)
Trehalose and Kidney Health
Kidney function gradually declines with age, and age-related kidney changes are often linked to higher oxidative stress and impaired cellular stress resilience. Because the kidney is highly metabolically active, oxidative damage can contribute to progressive functional decline over time.
In aged rat models, trehalose supplementation has been studied for potential antioxidant and stress-response effects in the kidney. In one study, daily trehalose supplementation for one month was reported to improve kidney antioxidant defenses, including changes in pathways involving NFE2L2 (Nrf2), catalase, and superoxide dismutase, key components of the cellular response to oxidative stress. (R)
In a separate study in aged rats, trehalose supplementation was associated with lower markers of oxidative stress and inflammation in kidney tissue, alongside changes linked to SIRT1, a protein involved in stress-response regulation and cellular maintenance. (R)
Trehalose and Liver Health
Aging is associated with changes in liver metabolism and a higher risk of conditions such as non-alcoholic fatty liver disease (NAFLD). Age-related shifts in lipid handling, cellular stress responses, and inflammation can contribute to fat accumulation and functional decline over time.
In preclinical aging models, trehalose supplementation has been studied for its potential effects on liver metabolic and stress-response pathways. In aged animals, trehalose has been reported to influence signaling linked to lipid metabolism and to reduce markers of hepatic lipid accumulation, with effects discussed in the context of pathways such as SIRT1/AMPK and lipid-regulatory transcription factors. (R)
In older mice, trehalose supplementation has also been reported to reduce hepatic endoplasmic reticulum stress and inflammatory signaling, while supporting cellular protein homeostasis (proteostasis) in liver tissue. (R)
Trehalose and Cardiovascular Health
Arterial stiffness and declines in endothelial function are common features of vascular aging and are associated with higher cardiovascular risk over time.
In a preclinical model of hypertension (spontaneously hypertensive rats), restoring autophagy was linked to improvements in vascular function and reduced arterial stiffening, supporting the broader concept that autophagy-related processes may matter in vascular aging. These findings are preclinical and do not by themselves demonstrate the same effect in humans taking trehalose (R).
The Impact of Trehalose on Human Health
Human research on oral trehalose has primarily studied daily intakes of approximately 3.3 g per day, typically over a 12-week period, with outcomes focused on inflammation and cardiometabolic biomarkers.
A full daily serving of NOVOS Vital provides 4 g of trehalose, a dose closely aligned with human clinical research.
In a double-blind, randomized, placebo-controlled trial in adults with type 2 diabetes, 3.3 g per day of oral trehalose for 12 weeks was associated with a reduction in hs-CRP, a marker of systemic inflammation, compared with placebo (R).
Additional clinical research is underway evaluating 3.3 g per day of trehalose for 12 weeks in recovery settings, with endpoints including CRP, IL-6, TNF-α, and wound-healing indices. Results from this trial will help further clarify trehalose’s effects on inflammatory and recovery-related biomarkers in humans.
(R)
Overall, the current human evidence on oral trehalose is based on studies using daily intakes close to one NOVOS Vital serving. These trials suggest trehalose may support inflammation-related biomarkers in specific populations, while additional research is ongoing to clarify its broader effects on health outcomes.
NOVOS VITAL & Trehalose
NOVOS Vital contains 4 grams of this powerful ingredient, trehalose, along with six other scientifically researched ingredients that target vital organ health. Together, these ingredients work to optimize your brain, eyes, gut, kidneys, liver, muscles, and heart. NOVOS Vital is a low calorie and low sugar chew that provides a healthy alternative for a sweet treat.
