NAD+ and healthy aging: what the science says

Key takeaways

NAD+ is a molecule every cell uses to turn food into energy. Levels fall with age in many tissues.
Human studies show that some NAD+ precursors, like NR and NMN, can raise NAD+ levels. Whether that improves how people feel or function is still unclear [1].
Most of the exciting results come from animal studies. We'll keep the two clearly separate.
Regular aerobic exercise and strength training have the strongest evidence for healthy aging [2].
Time-restricted eating hasn't beaten regular calorie awareness in the strongest human trials so far [3][4].

NAD+ has become one of the most talked-about molecules in healthy aging. This guide covers what it does, what the human research actually shows (and how much comes from mice), and the habits with the strongest evidence for lasting energy: cardio, strength, sleep and how you eat.

What NAD+ does

NAD+ (nicotinamide adenine dinucleotide) is found in every cell in your body. It has two big jobs:

Energy. It helps your mitochondria, the "power plants" in your cells, turn food into usable energy.
Maintenance. It's used by enzymes involved in repairing DNA and other cell upkeep.

Your body makes NAD+ from vitamin B3 (niacin) and related compounds in food. In many tissues, NAD+ levels drop as we age. In animal studies, raising NAD+ improved several markers of aging. In people, the picture is less clear ^[1].

Human vs animal evidence, at a glance:

What we know	Where it comes from
NAD+ levels fall with age in many tissues	Human and animal studies
NR and NMN can raise NAD+ levels in blood and some tissues	Human trials ^[1]
Raising NAD+ improves physical function or health	Mostly animal studies; human results unclear ^[1]
Raising NAD+ extends lifespan	Animal studies only

Your routine at a glance

Pillar	What it means this week
Eat	Protein at every meal. Mostly whole, minimally processed foods.
Move	Three 30-minute "Zone 2" cardio sessions and two strength sessions.
Rest & reset	A consistent sleep window of 7 to 9 hours.
Supplement	If you choose Liposomal NAD+, take 2 capsules daily with meals.*

Want a routine made for your goals? Take our Find your routine quiz: aging well and long-term vitality.

Eat

The foundation

The current Dietary Guidelines put protein at every meal (about 1.2 to 1.6 g per kg of body weight a day), whole and minimally processed foods, and low added sugar ^[5]. Protein matters more as you age, because it helps you keep muscle.

Foods that supply vitamin B3 (the raw material for NAD+): chicken, turkey, tuna, salmon, peanuts, mushrooms, brown rice, and fortified cereals.

What about time-restricted eating?

Eating within an 8- to 10-hour window is popular in longevity circles. Here's what the strongest human trials found:

In a 12-week trial, people eating within an 8-hour window lost only a little weight, and not significantly more than the control group ^[3].
In a 12-month trial, eating in an 8-hour window plus cutting calories worked about the same as cutting calories alone ^[4].

Bottom line: an eating window can be a helpful way to structure your day if you like it. It isn't magic. What you eat and how much matter more.

Smart swaps

Instead of	Try	Why
A bagel and coffee	Greek yogurt, berries and walnuts	Protein for muscle, fiber for fullness
A protein bar on the go	Two hard-boiled eggs and fruit	Less processed
Takeout pasta	Salmon, quinoa and roasted vegetables	Protein, fiber and omega-3s
A nightcap	Herbal tea	Alcohol disrupts sleep

A sample day

Breakfast: Three-egg omelet with mushrooms and spinach, whole-grain toast.
Lunch: Big salad with chicken or chickpeas, quinoa, olive oil and lemon.
Snack: Cottage cheese with berries, or edamame.
Dinner: Salmon or tofu, brown rice and roasted broccoli.

Three easy recipes

1. Mushroom and spinach omelet (vegetarian)

3 eggs, 1 cup sliced mushrooms, 1 cup spinach, a little olive oil, salt and pepper.
Sauté the mushrooms until browned, add the spinach, then pour in the beaten eggs and cook until set.

2. Japanese-style salmon rice bowl

1 salmon fillet, 1 cup cooked brown rice, ½ cucumber, ½ avocado, edamame, soy sauce, sesame seeds.
Roast the salmon at 400°F for 12 minutes. Flake it over the rice with the vegetables, then drizzle with soy sauce.

3. Peanut chicken (or tofu) stir-fry (Southeast Asian-inspired)

1 lb chicken or tofu, 4 cups mixed vegetables, 2 tablespoons peanut butter, 1 tablespoon soy sauce, lime, garlic, ginger.
Stir-fry the protein, add the vegetables, then stir in a sauce of peanut butter, soy sauce, lime and a splash of water.

Grocery list

Produce: mushrooms, spinach, broccoli, mixed vegetables, cucumber, avocado, berries, lemons, limes, garlic, ginger.
Protein: eggs, salmon, chicken or tofu, chickpeas, edamame, Greek yogurt, cottage cheese.
Grains: brown rice, quinoa, whole-grain bread.
Pantry: peanut butter, walnuts, olive oil, soy sauce, sesame seeds, herbal tea.

Move

Exercise is one of the most-studied "longevity interventions" we have. The Physical Activity Guidelines suggest 150 to 300 minutes of moderate aerobic activity a week, plus muscle-strengthening on two or more days ^[2].

Zone 2 cardio means steady activity where you can still talk in full sentences but not sing. Think brisk walking, easy cycling or a light jog.

Strength training helps you keep muscle and bone as you age.

Always: warm up for 5 to 10 minutes and cool down for 5 minutes. Stop and talk to a doctor if you have chest pain, unusual shortness of breath, dizziness or a racing heart.

4-week starter plan

Week	Beginner	Building	Strong
1	Zone 2: 20 min × 3 + strength × 1	Zone 2: 30 min × 3 + strength × 2	Zone 2: 45 min × 3 + strength × 2 + 1 interval session
2	Zone 2: 25 min × 3 + strength × 2	Zone 2: 35 min × 3 + strength × 2	Same, with one longer Zone 2 session (60 min)
3	Zone 2: 30 min × 3 + strength × 2	Zone 2: 40 min × 3 + strength × 2	Intervals: 4 × 4 minutes hard, 3 minutes easy
4	Zone 2: 30 min × 4 + strength × 2	Add 1 interval session	Keep it up; test a 5K walk or run time

Strength session (2 to 4 rounds): 10 goblet squats (or bodyweight squats), 10 push-ups, 10 dumbbell rows each arm (or backpack rows), 10 hip hinges (Romanian deadlifts), a 30-second plank.

Progress rule: add time, reps or weight a little each week, only when your current week feels manageable.

Moves to know

Goblet squat. Hold a weight at your chest, sit down between your heels, then stand. Mistake: knees caving in. Easier: squat to a chair. Harder: heavier weight or slower lowering.
Romanian deadlift. Hold weights in front of your thighs, push your hips back with a flat back, then stand tall. Mistake: rounding your back. Easier: lighter weight. Harder: one leg.
One-arm row. One hand on a bench, pull a dumbbell toward your hip. Mistake: twisting your torso. Easier: lighter weight. Harder: pause at the top.

Rest & reset

Sleep 7 to 9 hours ^[6], in a consistent window.
Stop caffeine 6+ hours before bed. Caffeine 6 hours before bed cut sleep by over an hour in one study ^[7].
Go easy on alcohol, especially close to bedtime.
Get daylight in the morning to anchor your body clock.
Schedule a recovery day. Gains come from training plus rest.

Where Liposomal NAD+ fits

Liposomal NAD+ provides 500 mg of NAD+ in sunflower lecithin liposomes, plus 50 mg of trans-resveratrol. It's made to support cellular energy, mitochondrial function and healthy aging.* It's one part of the routine. Exercise and sleep do the heavy lifting.

How to take it: 2 capsules daily, preferably with meals. One bottle is 30 servings. Individual results vary.

Subscribe & save: 15% off, ships every month, skip or cancel anytime.

Pairs with: Spermidine (or get both in the Healthy Aging Duo bundle and save 15%).

What's inside, and what the research says

Research on an ingredient isn't research on our product.

Ingredient	Our amount	What studies used	Evidence
NAD+ (liposomal)	500 mg	Most human trials used NAD+ precursors (NR or NMN), not NAD+ itself ^[1]	C: precursors can raise NAD+ levels; health effects in people are unclear ^[1]. Studies of swallowed NAD+ itself are still under way ^[8]
Trans-resveratrol	50 mg	—	C: limited human research for this use
Sunflower lecithin	Not stated	—	Used to form the liposomes

Evidence grades: A strong · B moderate · C limited or early · T traditional use or expert advice.

The honest summary: NAD+ is a real and important molecule, and research on raising it is exciting. But most of the strong results are in animals, and human trials have mostly used precursors, not NAD+ itself. We don't want to promise more than the science shows.

Good to know: Liposomal NAD+ is vegan and caffeine-free.

Your 12-week roadmap

Weeks	Eat	Move	Rest	Supplement	Check-in
1–2	Protein at every meal	Zone 2 × 3, strength × 1–2	A consistent sleep window	Start 2 capsules with meals*	Note your baseline: resting heart rate, a walk time, how you sleep
3–4	Mostly whole foods	Add a strength session	Caffeine cut-off	Keep it consistent	How's your recovery?
5–8	Try an eating window only if you like it	Build to 150+ minutes; add intervals if ready	Fewer late nights	Keep taking it daily	Re-check your walk time
9–12	Keep the meals that stuck	Progress weights	Protect recovery days	Decide if it stays in your routine	Compare to your baseline

Track it

Daily:

Protein at every meal
Moved for 30+ minutes
Stopped caffeine by my cut-off
7+ hours of sleep
Took Liposomal NAD+ with meals (if using)

Weekly:

3 Zone 2 sessions
2 strength sessions
1 full rest day

Myths vs facts

Myth: NAD+ supplements reverse aging. Fact: That claim comes from animal studies. Human results are still unclear ^[1].
Myth: Mouse results apply directly to people. Fact: Mice aren't small humans. That's why we label animal research clearly.
Myth: Time-restricted eating is the key to longevity. Fact: In human trials, it worked about the same as calorie awareness alone ^[3]^[4].
Myth: Cardio is enough. Fact: Strength training two days a week is part of the guidelines for a reason ^[2].
Myth: You can supplement your way out of poor sleep. Fact: Sleep is one of the biggest levers you have.

Safety first

Talk to your doctor or pharmacist before taking Liposomal NAD+ if you:

Are pregnant or breastfeeding. There isn't enough safety research.
Are under 18. This product is for adults.
Take blood thinners or have surgery coming up. Resveratrol may affect blood clotting.
Take any prescription medicines, or have a known health condition.

NAD+ precursors were safe and well tolerated in human studies ^[1], but long-term data are limited.

Possible side effects: upset stomach, nausea or headache.

When to see a doctor

Lower energy can come with age, but it isn't something to ignore. See a doctor if you have:

Tiredness that's new, gets worse, or doesn't improve with rest.
Shortness of breath or chest discomfort with activity.
Weight loss you can't explain.
Changes in mood, memory or sleep that worry you.

Regular checkups and age-appropriate screenings are some of the most useful tools for healthy aging.

FAQs

What is NAD+?
A molecule every cell uses to make energy and help maintain itself. Levels drop with age in many tissues.

Does NAD+ supplementation work in humans?
Precursors like NR and NMN can raise NAD+ levels in people. Whether that improves health or function is still unclear ^[1].

What does "liposomal" mean?
The NAD+ is wrapped in tiny fat bubbles made from sunflower lecithin, designed to help protect it during digestion.

Is time-restricted eating worth it?
If it helps you eat better, it can be useful. In trials, it didn't beat regular calorie awareness ^[3]^[4].

How long should I take it?
Give your whole routine at least 12 weeks. Individual results vary.

Is it vegan?
Yes.

Sources

Freeberg KA, Udovich CAC, Martens CR, Seals DR, Craighead DH. Dietary supplementation with NAD+-boosting compounds in humans: current knowledge and future directions. J Gerontol A Biol Sci Med Sci. 2023. doi:10.1093/gerona/glad106
ODPHP. "Top 10 things to know about the second edition of the Physical Activity Guidelines for Americans." https://odphp.health.gov/our-work/physical-activity/current-guidelines/top-10-things-know
Lowe DA, Wu N, Rohdin-Bibby L, et al. Effects of time-restricted eating on weight loss and other metabolic parameters in women and men with overweight and obesity: the TREAT randomized clinical trial. JAMA Intern Med. 2020;180(11):1491–1499.
Liu D, Huang Y, Huang C, et al. Calorie restriction with or without time-restricted eating in weight loss. N Engl J Med. 2022;386:1495–1504.
US Departments of Agriculture and Health and Human Services. Dietary Guidelines for Americans, 2025–2030. Jan 2026. https://cdn.realfood.gov/DGA.pdf
Sleep Foundation. "How much sleep do we really need?" https://www.sleepfoundation.org/how-sleep-works/how-much-sleep-do-we-really-need
Drake C, Roehrs T, Shambroom J, Roth T. Caffeine effects on sleep taken 0, 3, or 6 hours before going to bed. J Clin Sleep Med. 2013;9(11):1195–1200.
ClinicalTrials.gov. "A clinical trial to assess the absorption, safety, and efficacy of an oral nicotinamide adenine dinucleotide (NAD+) supplement in healthy adults." NCT07692633. https://clinicaltrials.gov/study/NCT07692633

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

This article is for general education and isn't medical advice.