Vascular Endothelial Growth Factor (VEGF)

Elevated circulating concentrations of vascular endothelial growth factor (VEGF) may be observed in a variety of disease states, especially those associated with angiogenesis. Elevated concentrations of VEGF must be interpreted within the clinical context of the patient.

Low VEGF (Vascular Endothelial Growth Factor): What It Means for Your Health

Low VEGF levels mean your body may be producing less of the protein responsible for building and repairing blood vessels. VEGF delivers oxygen and nutrients to vital tissues like the brain, nerves, and muscles, helping them heal and function properly. When VEGF drops too low, tissues may receive less blood flow, which can affect healing, energy, and nerve health.

What VEGF Does

VEGF is your body’s natural “construction signal” for new blood vessels — a process called angiogenesis. It ensures oxygen and nutrients reach every cell, especially in high-demand areas such as the brain, spinal cord, muscles, and eyes. Even a 50% drop in VEGF can significantly limit your ability to grow and repair blood vessels.

Why Low VEGF Matters

When VEGF levels stay low:

• Blood flow to nerves can decline, depriving them of oxygen.

• Nerve cells lose VEGF’s protective and regenerative effects, making them more vulnerable to damage.

• Muscle weakness and atrophy may develop over time if motor neurons are affected.
  Research also suggests VEGF helps regulate vascular tone by influencing nitric oxide release and autonomic nerve function — meaning low VEGF might impair your body’s ability to adjust blood flow when needed.

Conditions Linked to Low VEGF

Scientific studies have connected low VEGF levels with several neurological and mood-related conditions:

• Alzheimer’s disease: People with Alzheimer’s often have lower VEGF in blood and cerebrospinal fluid, suggesting decreased vessel repair and nutrient delivery in the brain.

• Amyotrophic lateral sclerosis (ALS): Reduced VEGF has been linked to increased ALS risk and faster nerve degeneration. VEGF supports motor neuron survival by improving spinal cord blood flow and providing protective signals.

• Depression and suicidality: Lower VEGF levels are more common in severe depression and among individuals with a history of suicide attempts.

• Nerve and muscle weakness: Low VEGF may contribute to chronic oxygen shortage (ischemia) and progressive nerve damage.

• POEMS syndrome: Unlike most conditions, VEGF is usually elevated in this rare disorder. A drop over time may indicate treatment success.

Supporting Healthy VEGF Levels

Low VEGF alone cannot diagnose any particular disease, but it can offer insight into tissue health and nerve function. If your VEGF levels are low, work with your healthcare provider to:

• Review medications (especially anti-VEGF therapies or steroids) that may lower VEGF.

• Assess nutrition and metabolism, including protein intake, B vitamins, and oxygen delivery.

• Check for neurological or vascular symptoms like tingling, numbness, weakness, or brain fog.

• Repeat the test after addressing possible causes to see if levels remain low.

Key Takeaways

• VEGF supports healthy blood vessels, nerve protection, and tissue repair.

• Low VEGF may be associated with neurodegenerative or mood disorders but does not confirm them on its own.

• Improving circulation, reducing inflammation, and addressing nutrient deficiencies may help support VEGF balance naturally.

• Always interpret VEGF results with your healthcare provider, considering symptoms and other test findings.

What is the VEGF test?

This test measures the amount of vascular endothelial growth factor (VEGF) in your blood. VEGF is a substance that helps encourage the growth of new blood vessels. Your body makes more VEGF in certain cases. For instance, if your tissues aren't getting enough oxygen, they may make more VEGF so that new blood vessels grow to bring in more oxygen. Your lungs contain VEGF because good blood flow is vital there.

But VEGF also plays a role in cancer growth. Cancers need an ample blood supply. As a tumor grows larger, its cells need more oxygen from the blood. The cancer encourages new blood vessels to grow to supply it with more blood and oxygen. Most tumors show higher levels of VEGF. Sometimes higher levels mean a lower chance of survival. In addition, VEGF may be important in the spread of cancer to other places within your body. Certain cancer treatments target VEGF. This test may be used to tell how well the treatments are working.

VEGF can also promote "leakiness" of blood vessels. This can lead to swelling in surrounding areas. This can be especially harmful during brain cancer because it can increase pressure within the skull and may lead to brain damage. Leaking blood vessels in the eye causing problems is also seen in age-related macular degeneration and eye changes from diabetes.

Normal concentrations of VEGF do not exclude the diagnosis of POEMS (polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes) syndrome.