Your body makes nitric oxide
two ways. Only one wears out.
The enzyme route fades with age — and your training keeps pushing on it. Beetroot's nitrate feeds the second route, the one that doesn't need that worn-out enzyme. Then you judge it on your own numbers.
Your Body Has Two Routes to Nitric Oxide. Only One Wears Out.
You already know nitric oxide drives blood flow. What most brands skip: your body makes it two different ways, and age only breaks one of them. Here's the difference that decides which supplement is worth your money.
The Enzyme Route
Arginine and citrulline supplements feed this path. It runs through the eNOS enzyme, which slows down as you get older, and your training keeps leaning on the same worn-out step.
The Beetroot Route
Dietary nitrate from beetroot takes a separate path your body converts on demand, no reliance on the aging enzyme. It's the backup line most people never supply enough of.†
Feed the route that doesn't age. Then judge it on your own numbers.
Shop Flexspac Beetroot One ingredient · 30-day money-back guarantee · Cancel anytime†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. Individual response varies.
The Science Is Loud. The Athletes Are Louder.
Dietary nitrate is one of the most researched compounds in endurance. But the people still racing in their 50s are the ones we listen to.
"My numbers stopped sliding."
Still racing, and my watts had crept down two seasons no matter how I trained. A few weeks in, my threshold test came back up. It's the first thing that lined up with the work.
"Recovery between sessions is real."
Back-to-back hard days used to wreck me. Legs feel less trashed the next morning now. Not magic, just steadier, and steadier is what I was after. Individual response varies, but for me it showed up.
"I take it because I can see what's in it."
One ingredient, dosed like they mean it, and I can cancel in a click. That's why I trust it. My morning blood pressure readings have trended down a little too, nothing dramatic, just the right direction.