People ask me fairly often which one they should try: NAD+ or GLP-1. My honest answer is that the question assumes they’re alternatives when they’re actually doing different jobs.
I use both. Here’s why.
What GLP-1 Does
GLP-1 medications like semaglutide work on hunger signaling. They mimic a hormone your gut releases after eating that tells your brain you’re full. The practical result is reduced appetite, smaller portions, and for most people, meaningful weight loss.
GLP-1 addresses the hormonal side of weight. It doesn’t address cellular energy, aging, or cognitive function. It’s targeted and effective at the thing it does.
For more on how GLP-1 works: GLP-1 for Weight Loss: Everything You Need to Know
What NAD+ Does
NAD+ is a coenzyme your cells use for energy production, DNA repair, and dozens of other metabolic functions. Levels decline significantly with age. Supplementing NAD+ addresses that decline, supporting better cellular energy, sharper mental function, and faster recovery.
NAD+ doesn’t suppress hunger. It doesn’t produce direct weight loss. What it does is improve the cellular environment that everything else depends on.
Where They Overlap
Both affect metabolism, just at different levels. GLP-1 works at the hormonal and appetite level. NAD+ works at the cellular energy level. When you’re on GLP-1 and eating less, your body needs its energy systems running well to maintain muscle, recover from exercise, and avoid the fatigue many people experience during active weight loss.
That’s where NAD+ becomes relevant. It’s not competing with GLP-1. It’s supporting the cellular infrastructure that makes everything else work better.
Who Should Consider Both
GLP-1 first if weight loss is the primary goal. Get that established, get comfortable with the process. Then evaluate whether fatigue, cognitive fog, or slow recovery is affecting your results. That’s when NAD+ becomes worth the conversation.
NAD+ first if weight isn’t your primary concern but energy, aging, and cognitive performance are. It has broader appeal than GLP-1 because it doesn’t require a qualifying BMI or weight-related condition.
Both is a legitimate option with a provider who monitors you through the process. That’s what I do through GobyMeds. Use code MTVN25 for $25 off your first order. I earn a commission if you use that link.
Judy White is the founder of Motivation Weight Loss. She uses both GLP-1 and NAD+ through GobyMeds and writes from personal experience, not as a medical professional.