What are NAD+ Supplements?
Nicotinamide adenine dinucleotide (NAD+) is a vital coenzyme present in every living cell, essential for converting nutrients into usable energy (ATP) and maintaining proper cellular function. It plays critical roles in DNA repair, gene expression, metabolism, and cell signaling, all of which are central to energy production and longevity. However, NAD+ levels naturally decline with age, oxidative stress, and unhealthy lifestyle factors, leading to decreased metabolic and cognitive function and faster cellular aging.
NAD+ supplements are formulated to help replenish these declining levels. Most products do not contain NAD+ itself but precursor molecules (like nicotinamide riboside [NR], nicotinamide mononucleotide [NMN], or niacin) that are converted into NAD+ within the body. This process boosts cellular NAD+ and enhances mitochondrial energy production. By restoring NAD+ balance, these supplements may support sustained energy, improved focus, and more efficient cellular repair mechanisms.
What do NAD+ Supplements Do in the Body?
NAD+ supplements work at the cellular level of your body to restore energy, repair tissues, and improve metabolic resilience. While not a cure-all, maintaining healthy NAD+ levels may contribute to greater vitality and longevity through reduced oxidative stress.
How We Tested and Selected the Best NAD+ Supplements
We tested and evaluated NAD+ supplements and scored them on a scale of 1–5 for factors such as first impressions, easy-to-follow directions, swallowability, side effects, and value. Our testers evaluate the products based on their own individual experiences and preferences. We then review their testing feedback and data to share our findings and recommendations with you.
Formula
When selecting and testing NAD+ supplements, we worked with a certified nutrition coach to ensure each formula meets the highest standards for efficacy and safety. The evaluation process focuses on clinically supported dosages that reflect current research, seeking NAD+ products that deliver the optimal amounts shown in peer-reviewed studies. Ingredient quality and transparency are top priorities, and we favored NAD+ supplements made in GMP-certified facilities, with third-party testing, and free of unnecessary additives.
Taste and Texture
Flavor is a big part of our testing process. We asked our testers to provide feedback on the taste, aftertaste, and swallowability of the NAD+ supplements.
Form
Serving sizes for NAD+ supplements range from a single capsule to multiple pills. Whenever possible, we chose NAD+ products that required fewer capsules per serving for added convenience. We also tested NAD+ supplements in various forms, such as a mixable powder and face cream, for folks who like to vary the way they ingest the supplement.
Third-Party Testing
We selected NAD+ supplements that have been verified through third-party testing for safety, purity, and label accuracy. This process also screens for harmful substances like heavy metals and pesticides.
For athletes, third-party testing is crucial to confirm there are no banned substances — products should be sport certified. Since the FDA does not regulate supplements, independent verification is essential for safety, accuracy, and consumer trust.
Value
When considering value, we place a higher value on brands that source their ingredients in America and have certifications, such as Informed Choice.
| Enabled® 3-in-1 NR, Resveratrol, Pteslistilbene |
| NAD+ or NMN per serving | 500 mg NR |
| Price per serving | $1.49 |
| Wonderfeel Youngr NMN |
| NAD+ or NMN per serving | 900 mg NMN |
| Price per serving | $1.73 |
| ProHealth NMN Pro Powder 1000 |
| NAD+ or NMN per serving | 1,000 mg NMN |
| Price per serving | $1.96 |
| Nutricost NAD+ |
| NAD+ or NMN per serving | 1,000 mg NAD |
| Price per serving | $0.67 |
| Innerbody Labs NAD+ Support |
| NAD+ or NMN per serving | 700 mg NMN |
| Price per serving | $2.47 |
Start your NAD+ supplement routine slowly, and take it consistently with breakfast or your morning coffee to support steady energy production.
How to Find the Best NAD+ Supplement for You
NAD+ supplement needs vary based on your age, lifestyle, and any specific health goals you may have related to energy or cellular support.
Consider these factors when choosing the most suitable NAD+ supplement for you.
Your Body's Needs
NAD+ supplements can play a helpful role in supporting energy metabolism and cellular repair, but they aren't essential for everyone. Think of them as an optional boost to complement healthy habits — like proper nutrition, exercise, and good sleep — rather than a necessary cornerstone of wellness.
Formula
Consider whether you want a single-ingredient NAD+ precursor (NR or NMN alone) or a multi-ingredient formula that combines these with synergistic compounds like resveratrol, pterostilbene, or antioxidants for broader cellular support.
Cost
NAD+ supplements are typically taken daily, and can be pricey, so consider your budget before your first purchase. Also consider their formulations — those without additional B vitamins, collagen, or supporting compounds may tend to be less pricey. Always choose value based on efficacy rather than cheap price at the expense of quality.
Third-Party Testing
Because the FDA doesn't regulate supplements, a third-party testing provider provides independent verification. This gives you confidence in product quality and safety. We recommend choosing brands with third-party testing by a recognized organization.
Benefits of NAD+ Supplements
NAD+ supplements are associated with an array of potential health benefits, benefiting your longevity and metabolic health. Here are a few:
- Enhanced energy production: NAD+ helps to combat fatigue and improve endurance at the cellular level by converting nutrients into energy
- Improved cognitive and cellular health: NAD+ supports brain health by protecting neurons against oxidative stress and inflammation, promoting better memory, mental clarity, and overall cognitive function
- Metabolic and anti aging support: Maintaining optimal NAD+ levels has been linked to improved insulin sensitivity, reduced inflammation, and protection against age-related cellular decline
How to Take NAD+ Supplements
Most NAD+ supplements come in capsule, tablet, powder, or liquid form. Take them consistently with or after breakfast for optimal absorption and energy support.
- Take NAD+ supplements in the morning preferably with or after breakfast for optimal absorption and energy support
- Start with the lowest recommended dose and increase gradually
- NAD+ supplements can be paired with ingredients like resveratrol or TMG to maximize synergistic benefits
- We recommend talking with your doctor regarding combinations and medication interactions before starting or combining supplements
How Much NAD Should You Take Daily?
The most effective daily dosage for NAD+ precursors such as NR and NMN tends to be in the range of 250 milligrams to 500 milligrams per day for NR, while more robust increments tend to increase NAD+ levels in a linear progression from 250 to 1000mg/day. Doses up to 1000mg/day have been studied with no serious adverse effects reported. We don't recommend taking NAD+ supplements in excess of the recommended daily dose without consulting your healthcare provider.
Are There Any Risks of Taking NAD+ Supplements?
NAD+ supplements are generally considered safe, with some minor side effects such as nausea, headache, and digestive issues possible but uncommon. If taking other prescription medications, consult your healthcare provider. There are some concerns about long-term safety when taken for 6 months or more that have not been fully studied, especially for high or prolonged doses. NAD+ supplements may interact with certain medications and supplements, so we recommend speaking with your healthcare provider before starting a new supplementation regimen.
