Niacin converts food into energy, supporting muscle function in the legs. Stronger muscles improve circulation by aiding venous return, per a 2022 Journal of Nutrition study.
| Benefit | Mechanism | Circulation Impact |
|---|---|---|
| Vasodilation | Relaxes blood vessels | Enhances blood flow to legs and feet |
| Cholesterol Control | Raises HDL, lowers LDL | Clears arteries for better circulation |
| Anti-Inflammatory | Reduces vascular inflammation | Decreases leg swelling |
| Muscle Energy | Supports energy production | Improves leg muscle function |
Other Health Benefits of Vitamin B3
Beyond circulation, niacin offers additional advantages for those over 50:
Heart Health Support
Niacin’s cholesterol-lowering effects reduce the risk of heart disease, common in older adults. A 2018 European Heart Journal study linked niacin to a 10% lower risk of cardiovascular events.
Skin Health

Niacin supports skin barrier function, reducing dryness or irritation in the legs and feet. A 2021 Dermatology Research study noted its role in improving skin hydration.
Brain Health
Improved blood flow from niacin benefits the brain, potentially enhancing focus and memory. A 2020 Frontiers in Aging Neuroscience study suggested niacin supports cognitive health in older adults.
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