How is NAD+ Level Measured?
1. Blood Tests
The most common method. Performed in specialised laboratories and measures NAD+ levels in plasma.
Advantage: Provides direct and accurate results.
Disadvantage: Not available in all laboratories, usually requires advanced biochemistry tests.
2. Metabolite Analysis
Indirectly determines the level by measuring the breakdown products of NAD+ in the body.
Can be performed on urine or blood samples.
The NADH/NAD+ ratio is also measured to provide information about energy metabolism.
3. Biomarker Test Panels
Some anti-aging clinics offer NAD+ levels as part of biological age determination tests.
Sirtuin activity, oxidative stress levels, and mitochondrial function are also reported.
What Should NAD+ Levels Be?
NAD+ levels are higher in healthy young individuals. However, they naturally decrease with age:
20s: High and balanced levels
40s: Approximately 30-50% decrease
60 and older: Less than half of youth levels
The optimal level varies depending on age, lifestyle, and health status. The goal is to maintain the highest healthy level possible on an individual basis.
Methods for Monitoring NAD+ Levels
1. Create a Regular Testing Plan
Initial test: To determine the reference level
3-6 months later: To see the effect of supplementation or lifestyle changes
Annual check-up: To monitor long-term trends
2. Keep a symptom diary
Evaluate test results along with daily observations such as energy levels, sleep quality, and mental clarity.
3. Biological age tracking
Changes in NAD+ levels can be compared with biological age measurements to track long-term effects.
Tips for Increasing and Tracking NAD+ Levels
Diet rich in vitamin B3 (tuna, chicken, mushrooms, peanuts)
Regular exercise (especially aerobic activities)
Intermittent fasting
Antioxidant-rich diet (blueberries, green tea, avocado)
Scientific support with NAD+ supplements (NMN, NR)
Note: If you are using supplements, you can test your NAD+ levels to monitor the effectiveness of the dose and form.
Scientific Findings
Nature Communications studies show that NAD+ levels naturally decline with age and that this decline is linked to biological ageing.
Harvard University research suggests that NAD+ supplementation may improve DNA repair, energy metabolism, and mitochondrial function.
Frequently Asked Questions
1. Can NAD+ levels be measured at home?
No, a laboratory test is required for accurate measurement.
2. Is it necessary to get tested before starting supplementation?
Yes, knowing your starting level is important for evaluating the effectiveness of supplementation.
3. How should I interpret the test results?
Results must be evaluated by a qualified physician or biochemist.
NAD+ is one of the cornerstones of healthy living and cellular youth. Measuring and regularly monitoring your levels helps you understand your current health status and see the effectiveness of your lifestyle and supplement strategies.
Regular testing helps you take the right steps to maintain and increase your NAD+ levels.