If you’re managing high blood pressure, the last thing you want is to find out your medication might actually be doing harm.

A new study has raised concerns that L-type calcium channel blockers (LCCBs), one of the most widely prescribed blood pressure drugs, could negatively impact heart health. That’s why many people are turning to natural ways to manage hypertension.

Below are 13 vitamins, nutrients, and herbs—some available as supplements, others found in everyday foods—that can support healthy blood pressure levels.

13 vitamins, nutrients, and herbs for healthy blood pressure levels

1. Vitamin C
This powerful antioxidant helps protect nitric oxide, a compound that relaxes blood vessels and supports circulation. Studies have shown that daily doses between 300–1,000 mg can significantly reduce blood pressure in people with hypertension. It also supports collagen production, which keeps heart tissues healthy.

2. Vitamin D
Vitamin D deficiency has been linked to increased blood pressure. One large review found that people with higher vitamin D levels had nearly 30% less risk of developing hypertension. Supplement with vitamin D3 for best absorption.

3. Hawthorn
Hawthorn berries are rich in flavonoids that improve circulation and protect the heart from oxidative stress. Both human and animal studies show it helps reduce blood pressure and supports healthy cholesterol levels.

4. Vitamins B
Several B vitamins, especially B6, B2 (riboflavin), and B9 (folate), may help lower blood pressure. Niacin (B3) works as a vasodilator, relaxing blood vessels and improving blood flow.

5. Omega-3 Fatty Acids
Omega-3s reduce inflammation, blood lipid levels, and high blood pressure. A review of 71 studies suggests around 3 grams per day is optimal for lowering blood pressure.