NAD (nicotinamide adenine dinucleotide) is a natural molecule found in every cell of your body. It helps turn food into energy and keeps your cells healthy and working right.
This article explains what NAD does, why levels drop as you age, and what you can do about it.
What Does NAD Do in the Body?
It Powers Your Cells
Think of NAD as a battery charger for your cells. Without it, your cells can’t make energy. Research from the National Institutes of Health shows NAD plays a key role in metabolism, the process your body uses to convert food into fuel.
It Helps Repair DNA
Every day, your DNA gets damaged by stress, sunlight, and normal aging. NAD helps power the repair process. Without enough NAD, that damage builds up over time.
It Supports Brain and Heart Health
Low NAD levels have been linked to fatigue, brain fog, and increased risk of chronic disease. Keeping NAD levels healthy may support sharper thinking and a stronger heart. Our team helps patients manage long-term health through chronic disease management in Lisle.
Why NAD Levels Drop With Age
It’s a Natural Decline
Studies show NAD levels can drop by up to 50% between young adulthood and middle age. This decline is linked to lower energy, slower recovery, and increased inflammation.
Lifestyle Factors Make It Worse
Poor sleep, alcohol use, and a diet low in nutrients all speed up NAD depletion. Managing these factors matters, and so does getting regular check-ins with your doctor, like annual physicals in Lisle.
How to Support Healthy NAD Levels
Eat the Right Foods
Foods rich in niacin (vitamin B3) help your body produce more NAD. These include:
- Chicken and turkey
- Fish like tuna and salmon
- Peanuts and whole grains
Consider NAD Precursor Supplements
NMN and NR are supplements that your body converts into NAD. Harvard researchers have noted growing interest in these supplements for healthy aging, though more human trials are still underway.
Exercise and Sleep Matter Too
Regular movement and quality sleep both support NAD production naturally. If sleep is a struggle, that’s worth addressing, it affects far more than just energy levels.
Final Thoughts
NAD is one of your body’s most important molecules. Keeping it at healthy levels supports your energy, brain, and long-term health. Small daily habits make a real difference.
If you’re feeling run down or want to get ahead of aging-related decline, talk to a provider. Our team at Yorktown Health Lisle is happy to help you build a plan that fits your life.