Tru Niagen Immune

You train hard, sleep less than you should, and push through stress that would sideline most people. And then — right in the middle of a training block — you get sick. Here's what most athletes don't realize: your immune system and your cellular energy run on the same fuel. When your body is under stress, your NAD+ levels — the molecule every cell uses for energy and repair — can drop by up to 80%. Your immune cells are fighting on an empty tank before the battle even starts.

Tru Niagen Immune is the only daily immune supplement built around restoring that NAD+ foundation first, then layering in a precision blend of immune-essential nutrients at doses that actually match the research.

NAD+ Is Your Immune System's Power Source Most immune supplements throw in vitamin C and call it done. Tru Niagen Immune starts deeper — with 100mg of patented Niagen® to restore the cellular energy both branches of your immune system, the rapid-response innate system and the targeted adaptive system, depend on to function at full capacity.

No Underdosed Fillers — Every Ingredient Earns Its Place Tru Niagen reformulated this product specifically to remove anything that wasn't pulling its weight at a meaningful dose. What's left is selenium, copper, and dual-form zinc at research-aligned levels — working in balance, not just listed on a label.

Bioavailability Built In The nutrients here aren't just the right ones — they're the most absorbable versions. Plant-based VegD3® from algae, vitamin C derived from fermentation rather than synthetic sources, and two forms of zinc (citrate and gluconate) for better uptake than single-source zinc alone.

Your immune cells need energy to do their job — and that energy comes from NAD+. Niagen® (a uniquely efficient form of vitamin B3) raises NAD+ levels at the cellular level, giving your immune system the fuel it needs to respond, adapt, and recover. Add 2,000 IU of plant-derived vitamin D3 — the nutrient your immune cells use to regulate their activity — alongside vitamin C, selenium, and copper for antioxidant defense, and you have a formula designed to keep your defenses sharp year-round, not just during cold season.

Take Daily: One capsule per day, with a meal for optimal absorption. Stack It: Pair with Tru Niagen 300mg or Pro 1,000mg for a complete NAD+ and immune protocol. Pro Tip: On high-stress days — travel, heavy training blocks, poor sleep — an additional capsule provides extra support when your immune system needs it most.

Backed by 40+ clinical studies on Niagen® and built on the same platform trusted by leading NAD+ researchers worldwide, Tru Niagen Immune is the supplement serious athletes reach for when they can't afford to go down.

This isn't just another immune supplement stacked with vitamin C and wishful thinking. This is cellular-level defense, built for athletes who train too hard to get sick.