If your legs feel heavy, your feet swell by afternoon, or you experience tingling, numbness, or coldness in your lower limbs, you may be dealing with poor circulation—a common but often overlooked issue that affects millions, especially as we age.

While conditions like peripheral artery disease (PAD), diabetes, or chronic venous insufficiency are major medical causes, nutrition plays a powerful supporting role. And among all vitamins, Vitamin B3 (niacin) stands out as one of the most effective natural allies for improving blood flow to the legs and feet.

But before you rush to buy supplements, it’s critical to understand how niacin works, what dose is safe, and which other nutrients—and lifestyle changes—should accompany it for real results.

In this guide, you’ll discover:

✅ Why niacin is called “nature’s vasodilator”
✅ The right (and wrong) way to take it

✅ 4 other circulation-boosting vitamins & minerals
✅ When poor circulation signals a serious condition

✅ Natural, drug-free strategies to keep blood flowing

Let’s dive in—because your legs deserve to feel light, warm, and energized again.
🔬 Why Vitamin B3 (Niacin) Is a Circulation Powerhouse

Niacin isn’t just another B vitamin—it’s a potent vasodilator, meaning it helps relax and widen blood vessels, allowing oxygen-rich blood to reach your extremities more efficiently.

Here’s how it works: