Why Dietary Nitrates May Be One of the Most Important Nutrients After 50
For most people over the age of 50, aging seems to happen gradually.
Energy drops.
Recovery slows.
Blood pressure rises.
Exercise becomes harder.
Circulation worsens.
Brain fog appears.
Sleep declines.
Muscles weaken.
Many people assume this is simply “getting older.”
But modern research is increasingly pointing toward another possibility:
A large part of aging may actually be linked to declining nitric oxide production.
And importantly, one of the best ways to support healthy nitric oxide levels may be through dietary nitrates.
What Is Nitric Oxide?
Nitric oxide (NO) is a tiny signaling molecule produced naturally in the body.
Despite being microscopic, it controls some of the most important systems involved in healthy aging, including:
- blood flow
- oxygen delivery
- circulation
- mitochondrial energy production
- blood pressure regulation
- brain perfusion
- exercise performance
- endothelial health
In simple terms:
Nitric oxide helps your body deliver oxygen and nutrients efficiently.
Without healthy nitric oxide levels, your body becomes less efficient at repairing, energising, and protecting itself.
The Problem: Nitric Oxide Declines With Age
Research shows nitric oxide production declines significantly as we age.
This decline is now strongly associated with:
- endothelial dysfunction
- arterial stiffness
- reduced circulation
- mitochondrial decline
- cardiovascular disease
- high blood pressure
- cognitive decline
- reduced exercise tolerance
- slower recovery
Researchers now believe impaired nitric oxide signaling may be one of the central drivers of vascular aging.
And vascular aging affects almost every organ in the body.
Because if blood flow declines:
- oxygen delivery declines
- nutrient delivery declines
- waste removal declines
- mitochondrial efficiency declines
Your cells simply stop functioning optimally.
Why Blood Vessels Matter More Than Most People Realise
Your blood vessels are not just “pipes.”
They are living tissues controlled heavily by nitric oxide.
Healthy nitric oxide helps blood vessels:
- relax
- widen
- remain flexible
- resist inflammation
- resist plaque formation
- deliver oxygen more effectively
This is one reason elite athletes tend to have healthier vascular systems than sedentary people.
Exercise naturally stimulates nitric oxide production.
In fact, one of the major reasons exercise protects against aging may be because it continuously restores nitric oxide signalling.
Nitric Oxide and Mitochondria
Mitochondria are often called the “energy factories” of the cell.
They convert oxygen and nutrients into ATP, the energy currency of the body.
Research now shows nitric oxide plays an important role in:
- mitochondrial signalling
- oxygen utilisation
- exercise efficiency
- mitochondrial biogenesis (creation of new mitochondria)
- metabolic flexibility
One major study found dietary nitrate supplementation improved mitochondrial efficiency, meaning the body required less oxygen to produce the same amount of energy.
This is extremely important for aging.
Because aging is strongly associated with declining mitochondrial function.
A useful way to think about it is:
Mitochondria are the engines.
Nitric oxide is the fuel delivery system.
Dietary Nitrates: Nature’s Nitric Oxide Boosters
Dietary nitrates are naturally found in foods like:
- beetroot
- arugula
- spinach
- celery
- lettuce
The body converts these nitrates into nitric oxide through a natural pathway involving oral bacteria and circulation.
The nitric oxide generated from healthy foods and exercise appears to support normal physiological function and vascular health. When we are young.
But as we age levels drop by 50% at the age of 50. This leaves us very vulnerable to the effects of aging. This is why we need to boost levels with supplementation as the dietary nitrates are simply not sufficient.
What The Research Shows
Studies on dietary nitrate supplementation have shown benefits including:
- lower blood pressure
- improved endothelial function
- reduction in cholesterol
- improved circulation
- improved oxygen delivery
- improved exercise efficiency
- improved muscle oxygenation
- improved mitochondrial efficiency
- improved vascular flexibility
- improve collagen formation
Interestingly, many studies show the greatest benefits occur in older adults and people with impaired cardiovascular health.
Why?
Because these are the people most likely to have declining nitric oxide production.
Is Nitric Oxide the Secret to Protect Against Age Related Disease?
The evidence is increasingly suggesting yes.
Healthy nitric oxide signalling appears protective against many processes involved in aging, including:
- vascular dysfunction
- poor circulation
- oxidative stress
- mitochondrial decline
- reduced exercise capacity
- endothelial damage
- bone recycling and osteoporosis prevention
Researchers are now investigating nitric oxide pathways in relation to:
- cardiovascular disease
- dementia
- metabolic disease
- insulin resistance
- cognitive decline
- muscle loss
- healthy longevity
This does not mean nitric oxide is a “cure.”
But it may be one of the key systems that allows the body to maintain resilience as we age. Nitric oxide essentially acts as a protective force field from damaging metabolic processes.
How to optimise Nitric oxide levels
“The goal is to optimise nitric oxide”
The goal appears to be restoring youthful nitric oxide signalling.
Research suggests the body functions best within an optimised physiological range.
This is why the best long term approach likely combines:
- dietary nitrates
- supplemental nitrates
- regular exercise
- sunlight
- good oral microbiome health (avoid mouthwashes which destroy nitric oxide production)
- sauna and cold exposure
- humming
- metabolic health
- adequate sleep
- reduced inflammation
Together, these help restore the body’s natural nitric oxide systems. Ultimate 4 and boost effectively boost nitric oxide levels.
Testing
Nitric oxide is difficult to test with normal blood work. However a simple way is via a saliva test which indicates oral nitrates which is a proxy for systemic nitrates. I urge every person to test their levels to see their status. Every person I ever tested over the age of 50 has shown suboptimal levels. Which means they are leaving themselves very open to diseases developing as NO acts as that barrier. You can order here.
The Bigger Picture
One of the most interesting ideas emerging in healthy aging research is this:
Many features of aging overlap with declining nitric oxide function.
Reduced circulation.
Reduced energy.
Reduced exercise capacity.
Reduced vascular flexibility.
Reduced oxygen delivery.
Reduced mitochondrial efficiency.
All roads seem to keep pointing back to nitric oxide.
Which raises an important question:
Is part of aging simply the progressive loss of the body’s ability to efficiently deliver oxygen, nutrients, and energy?
Research increasingly suggests the answer may be yes.
And dietary nitrates may be one of the simplest ways to help support that system naturally.
References & Research
- Dietary nitrate and healthy aging review — NIH PMC Review
- Mitochondrial efficiency and nitrate supplementation — Nutrients Journal Review
- Nitric oxide and exercise physiology — Exercise & NO Review
- Safety and physiology of dietary nitrates — NIH Dietary Nitrate Review
If you want to try the nitric oxide humming technique here it is. Use headphones and try to hum in tune with the different pitches as they scale upwards. Practice once to twice a day for the best results.