NAD+ for Energy and Fatigue: What It Can and Cannot Do

How your body makes energy

Food is broken down and its electrons are handed to NAD+. NAD+ carries them to the mitochondria, which use them to make ATP, the fuel your muscles and brain spend. Without NAD+ this stops. NAD+ levels fall with age, and faster with heavy drinking, poor sleep, illness and long-term stress.

What the studies show

Raising NAD+ works. Daily NR and NMN, the building blocks sold as supplements, reliably raise NAD+ in the blood within weeks. That is well established.

Raising it does not automatically raise energy. In a trial of older men, three weeks of NR raised NAD+ inside muscle but did not change how well the muscle's mitochondria worked. In a trial of healthy middle-aged and older adults, six weeks of NR raised NAD+ with no clear change in physical performance.

Some trials do show a physical benefit. In a 2023 trial of healthy middle-aged adults, 60 days of NMN raised blood NAD+ and increased the distance walked in six minutes compared with placebo. In older men, 12 weeks of NMN modestly improved walking speed and grip strength.

Chronic fatigue syndrome. Two small trials tested NADH, the electron-carrying form, in people with chronic fatigue syndrome. One found about a third of patients improved, compared with under a tenth on placebo. Another, pairing it with CoQ10, found less fatigue. Both were small.

Infusions. No controlled trial has measured fatigue after NAD+ infusions.

The pattern across these studies: the benefit shows up most in older adults and people who start out low. Young, healthy, well-rested people tend to see little.

Common causes of fatigue to check first

Ongoing tiredness usually has a cause that can be found. NAD+ does not fix any of these:

• Low iron or anemia, especially in women who menstruate.
• An underactive thyroid.
• Low vitamin B12 or vitamin D.
• Blood sugar problems, including prediabetes.
• Poor sleep or sleep apnea. Loud snoring and waking unrefreshed are the signs.
• Depression or anxiety.
• Medications, including some for blood pressure, allergies and sleep.
• Alcohol. It breaks up deep sleep and uses up NAD+.
• Dehydration and not eating enough.
• Recovering from an infection, which can take weeks.

If you have been tired for more than two weeks without an obvious reason, get blood work before you spend money on anything else. Iron, thyroid, B12, vitamin D and blood sugar can all be checked from one draw at home.

See a doctor promptly for fatigue that comes with chest pain, shortness of breath, unexplained weight loss, fever or night sweats.

Where NAD+ fits

NAD+ is a reasonable thing to try when the common causes have been checked and you are in one of these situations:

• A demanding stretch at work, or heavy travel across time zones.
• Recovering after an illness.
• Past 40 and noticing that energy and recovery are not what they were.
• Cutting back on alcohol.

What clients describe is steadier energy through the day, clearer thinking and better sleep, starting within a few days and lasting from days to a few weeks. It is not a stimulant, so it does not feel like caffeine. Some people feel little after one session and more after a short series.

What a drip is like

NAD+ runs slowly, over one to four hours. If it runs too fast you feel warmth or pressure in the chest and a tight stomach. The nurse slows the drip and it passes. Most people feel calm or a little tired for the rest of that day, and notice the difference over the following days. Eat beforehand, drink water, and keep the afternoon free.

At Zen IV Spa

NAD+ drips come in 250, 500 or 1,000 mg. A licensed provider reviews your health history on a video call before your first drip. A licensed nurse checks your blood pressure and pulse at your door and stays the whole time. Blood draws at home are available if you want to check the common causes first. All of New York & New Jersey, 8 AM to 11 PM. Our medical director oversees every treatment.

Quick answers

Will NAD+ give me energy the same day? Usually not. People who respond tend to notice it over the next several days.

Is NAD+ a stimulant? No. It does not raise heart rate or keep you awake.

Should I get blood work first? Yes, if you have been tired for more than two weeks.

How often do people do it? Many start with one, then decide with the provider. See How Often Should You Get NAD+?

Pill or drip? Pills raise NAD+ slowly with daily use. A drip raises blood levels in one session.

Tired and not sure why? Start with a blood draw at home (zenivspa.com/labs-testing/) or book NAD+ (zenivspa.com/iv/nad/).

All treatments are medical services. Every guest is screened, and every treatment is provided only under the clearance, prescription or standing protocol of a licensed medical provider. Compounded peptides are not FDA-approved unless stated. Nothing on this page is a diagnosis or a promise of results.