A common question I receive is, "I've been taking Ultimate 4 every day, but my nitric oxide levels aren't increasing. Why?"
First thing is to be patient. Our bodies all come from a different starting point and carry a range of health situations which can affect how your body absorbs and converts the dietary nitrates in Ultimate 4.
The second thing is to undestand Ultimate 4 provides the dietary nitrates. Boost 3 gives your body the ideal environment to convert and use the Nitric Oxide efficiently. It is a system, and the best results come from using both.
The good news is that there is usually a reason why your levels are not rising as quickly as you want, and if you work with us, we can identify the block. Also, testing may not show the full picture. If you are feeling better, then your system is raising NO levels, however your oral conversion could be the issue. So testing in a way is not show the total picture. So the most important aspect is going by how you feel.
The common factors that affect NO conversion and utilisation are your oral microbiome, digestive system, blood vessels, hormones, lifestyle, and even genetics, all play an important role. If one or more of these systems isn't functioning optimally, your nitric oxide levels may not increase as expected.
1. Your Oral Microbiome Has Been Disrupted
This is the most common reason we see.
Dietary nitrates don't become nitric oxide immediately. After you consume nitrate-rich foods or supplements like Ultimate 4, beneficial bacteria living on the surface of your tongue convert nitrates into nitrites. Without these bacteria, very little nitric oxide can be produced.
Common causes include regular use of antibacterial mouthwash, antiseptic toothpastes, recent antibiotics, poor oral hygiene and gum disease.
If you use antibacterial mouthwash every day, you may be significantly reducing your body's ability to produce nitric oxide.
2. Low Stomach Acid
Once nitrite is swallowed, the acidic environment of the stomach helps convert it into nitric oxide.
People with reduced stomach acid may therefore produce less nitric oxide even if they consume plenty of dietary nitrates.
Low stomach acid is commonly associated with ageing, long-term use of acid-suppressing medications, autoimmune gastritis and chronic digestive disorders.
3. High Oxidative Stress
Sometimes the body is producing nitric oxide normally, but it is being destroyed almost immediately.
Nitric oxide is highly reactive. Excess free radicals rapidly combine with nitric oxide, reducing its availability and forming harmful compounds such as peroxynitrite.
High oxidative stress is commonly associated with smoking, diabetes, obesity, chronic inflammation, excessive alcohol intake, poor diet and chronic infections.
Reducing inflammation and improving antioxidant status can significantly improve nitric oxide availability.
4. Poor Blood Vessel Health
Your blood vessels naturally produce nitric oxide through an enzyme called endothelial nitric oxide synthase (eNOS).
As we age, this enzyme becomes less efficient. High blood pressure, elevated cholesterol, insulin resistance, cardiovascular disease and inactivity can all reduce endothelial function and lower nitric oxide production.
Ultimate 4 supports nitric oxide production through the dietary nitrate pathway, but healthy blood vessels remain an important part of overall nitric oxide physiology.
5. Low Antioxidant Status
Vitamin C and other antioxidants help protect nitric oxide from oxidative destruction.
Without adequate antioxidant protection, nitric oxide has a much shorter lifespan.
Ultimate 4 includes vitamin C for this reason, but maintaining a diet rich in colourful fruits and vegetables further supports nitric oxide production.
6. Low Thyroid Function
An underactive thyroid slows many processes throughout the body, including nitric oxide production.
People with hypothyroidism often experience fatigue, poor circulation, cold hands and feet, reduced exercise tolerance and slower recovery. Many of these symptoms overlap with those seen in people with low nitric oxide levels.
Optimising thyroid function may improve nitric oxide production and vascular health.
7. Menopause and Hormonal Changes
Oestrogen plays an important role in stimulating nitric oxide production by activating endothelial nitric oxide synthase.
As women transition through menopause and oestrogen declines, nitric oxide production naturally falls. This contributes to poorer circulation, reduced vascular flexibility and increased cardiovascular risk.
This is one reason many post-menopausal women experience lower energy, slower recovery and reduced exercise capacity.
Ultimate 4 provides an alternative nitrate pathway that may help support nitric oxide production despite these hormonal changes.
8. Lack of Exercise
Exercise is one of the body's most powerful stimulators of nitric oxide.
Every time blood flows more rapidly through your arteries during exercise, it stimulates your blood vessels to produce more nitric oxide.
Regular walking, resistance training and cardiovascular exercise all improve nitric oxide production over time.
Supplements should always be viewed as working alongside, not replacing, regular physical activity.
9. Dry Mouth
The nitrate cycle depends heavily on saliva.
If you suffer from dry mouth, less nitrate is recycled back into the mouth where beneficial bacteria convert it into nitrite.
Dry mouth may occur due to certain medications, dehydration, ageing or autoimmune conditions such as Sjögren's syndrome.
Improving hydration and identifying the underlying cause may help improve nitric oxide production.
10. Genetics
Some people naturally produce less nitric oxide than others.
Genetic variations affecting nitric oxide enzymes, antioxidant systems and nitrate transport proteins can all influence an individual's response to nitrate supplementation.
While genetics cannot be changed, they usually account for only part of the picture. Lifestyle factors generally have a much greater influence.
11. Incorrect Testing
Sometimes nitric oxide is increasing, but the testing method isn't giving an accurate picture.
Salivary nitric oxide strips are affected by brushing your teeth, eating, drinking, coffee, mouthwash, hydration and the time of day.
For the most reliable results, test first thing in the morning before brushing your teeth, eating or drinking, and try to test under the same conditions each time.
12. You Haven't Taken It Long Enough
Nitric oxide production doesn't always improve overnight.
Some people notice changes within a few days, while others require several weeks of consistent daily use before seeing measurable improvements.
Like many aspects of health, restoring nitric oxide production takes time, particularly if there are underlying issues affecting the oral microbiome, circulation or vascular health.
13. Diet
Although it is hard to increase NO levels through diet alone, it matters. Make sure you are eating primarily unprocessed foods, limit alcohol intake, lots of green leafy vegetables and a plant predominant approach is best for creating the internal environment for the body to thrive. Check out my article on the 9 foods which you should include in your diet daily.Â
Other Factors Worth Considering
Several additional factors may also influence nitric oxide production, including poor sleep, chronic psychological stress, obesity, uncontrolled blood sugar, poor kidney function and diets low in natural vegetables. Certain medications may also affect nitric oxide pathways.
If your nitric oxide levels remain low despite addressing the common causes above, it may be worthwhile discussing further investigation with your healthcare practitioner.
The Bottom Line
If your nitric oxide levels haven't increased, it doesn't necessarily mean Ultimate 4 isn't working. In most cases, another factor is limiting your body's ability to produce or preserve nitric oxide.
The most common reasons include disruption of the oral microbiome, low stomach acid, oxidative stress, poor blood vessel health, hormonal changes, thyroid dysfunction, lack of exercise or inconsistent testing.
By addressing these underlying factors while taking Ultimate 4 consistently, you give your body the best opportunity to optimise nitric oxide production and enjoy the benefits of improved circulation, cardiovascular health, cognitive function, exercise performance, recovery and healthy ageing.