NAD+ dosage varies by route: oral 100–500 mg daily, subcutaneous 25–100 mg, and IV 250–1000 mg. Learn typical ranges, timing, and safety basics.
There is no single official NAD+ dosage. In practice, most protocols fall into three ranges: about 100–500 mg per day by mouth, 25–100 mg per subcutaneous injection, and 250–1,000 mg per intravenous (IV) session. NAD+ is not FDA-approved as a drug for anti-aging, energy, or disease treatment in the United States.
That gap matters, because dosing is usually set by the seller or clinic rather than by strong clinical evidence. The sections below break down common ranges by route, explain what numbers like 300 mg, 1000 mg, and 1500 mg actually refer to, and cover the safety issues worth knowing before you start.
NAD+ Dosage by Delivery Method
Route of administration changes the dose far more than body weight or age does. A 100 mg capsule and a 100 mg subcutaneous injection are not equivalent exposures.
| Route | Typical dose | Frequency | Key notes |
| Oral capsule or tablet | 100–500 mg per day | Once daily | Poor absorption; most oral NAD+ breaks down in the gut |
| Sublingual or nasal spray | 25–100 mg | 1–2 times daily | Partly bypasses digestion; limited human data |
| Subcutaneous injection | 25–100 mg per injection | 2–7 times weekly | Clinic or prescription protocols; injection site reactions |
| IV infusion | 250–1,000 mg per session | Every 1–4 weeks | Must be infused slowly over 1–4 hours |
Oral NAD+ Supplements: What 100–500 mg Really Means
Most oral products do not contain pure NAD+. They contain precursors such as nicotinamide riboside (NR) or nicotinamide mononucleotide (NMN), because NAD+ itself is poorly absorbed intact. If you are still asking what is nad plus, it helps to picture it as a coenzyme your cells use to move electrons and activate repair enzymes, not a vitamin you can simply top off.
Daily amounts used in human research look like this:
- NR: 100–300 mg in most trials, with some studies going up to 1,000 mg.
- NMN: 250–500 mg in most trials, with occasional studies using up to 1,200 mg.
- Plain oral NAD+: 100–500 mg, though how much survives digestion is unclear.
Higher is not automatically better. A 1000 mg capsule is often marketed as maximum strength, but published human data supporting bigger benefits at that level is thin. Many people treat nad plus supplements as a lower-cost, lower-risk starting point before considering injections.
NAD+ Injections and Subcutaneous Dosing
Subcutaneous dosing, which means injecting into the fatty tissue under the skin, typically uses far less NAD+ than an IV. Common starting protocols use 25–50 mg per injection and move toward 100 mg once or twice weekly if it is tolerated. Redness, mild swelling, and soreness at the injection site are the most frequently reported complaints.
Some clinics combine NAD+ with other compounds, and that is where nad plus peptides protocols come in. Each added ingredient brings its own risks, and none of these combinations are FDA-approved.
Needles are not a casual step. nad plus injections should come from a licensed pharmacy, and a clinician should confirm that injections are appropriate for your health history.
What 300 mg, 1000 mg, and 1500 mg Usually Mean
Those numbers appear constantly in clinic menus, but they describe different routes and settings.
| Label | Most common route | Typical setting |
| NAD+ 300 mg | IV infusion, occasionally oral | 1–3 hour infusion, often every 2–4 weeks |
| NAD+ 1000 mg | IV infusion | 2–4 hour infusion, commonly monthly |
| NAD+ 1500 mg | IV infusion, higher-end protocols | 3–4 hours, sometimes split into two sessions |
Infusion speed matters more than the total number for comfort. Flushing, chest pressure, and nausea during an IV are usually tied to how fast the NAD+ is delivered, not to the 1000 mg figure by itself.
Side Effects and Safety
Reported nad plus side effects range from mildly annoying to genuinely uncomfortable. They include flushing, warmth, chest tightness, shortness of breath, nausea, stomach cramping, headache, and a temporary drop in blood pressure.
Serious reactions are uncommon but possible. Rapid IV infusion is the most frequent trigger, and injections carry infection risk when sterile technique is not followed.
Talk with a healthcare professional before starting any NAD+ product, particularly if you are pregnant, breastfeeding, taking blood pressure medication, or managing cancer, liver, or kidney disease. NAD+ is not FDA-approved as a treatment for any condition, and supplement makers are not required to prove their products work before selling them.
How to Approach Your Own Dose
- Clarify your goal. Energy, sleep, and recovery are the most common reasons people start, but the evidence is still early.
- Start at the low end of the range for your chosen route.
- Change one variable at a time and track how you feel for two to four weeks.
- Choose vendors that publish third-party testing results.
Dose is only one part of the picture. Sleep, exercise, and diet all influence NAD+ metabolism, and no injection or capsule replaces those fundamentals.
Frequently Asked Questions
How much NAD+ should I take per day?
There is no established daily NAD+ dose. Oral precursors like NR and NMN are usually studied at 100–500 mg per day, subcutaneous injections typically use 25–100 mg per dose, and IV infusions run 250–1,000 mg per session. A clinician should set your dose based on your health history rather than a clinic menu.
What is a typical NAD+ IV dosage?
Most IV protocols use 250–1,000 mg per session, infused slowly over one to four hours. Some clinics offer 1,500 mg, often split across longer or multiple sessions. Side effects such as flushing and chest tightness are linked mainly to infusion speed rather than the total dose.
Is NAD+ FDA-approved?
No. NAD+ is not FDA-approved as a drug for any indication in the United States. It is sold as a dietary supplement, which the FDA regulates for safety but not for effectiveness, or provided as a compounded product through clinics. Compounded drugs are not FDA-approved either.
This page provides educational research information and does not replace medical advice, diagnosis, or treatment.