Poor circulation is a common problem caused by a number of conditions.
Reduced blood flow can cause unpleasant symptoms, such as pain, muscle cramps, numbness, digestive issues and coldness in the hands or feet.
In addition to those with poor circulation, athletes and active individuals may want to increase blood flow in order to improve exercise performance and recovery.
Although circulatory issues are often treated with medications, eating certain foods can also improve blood flow.
Here are the 14 best foods to optimize blood flow.
1. Cayenne Pepper
Cayenne pepper gets its spicy flavor from a phytochemical called capsaicin.
Vasodilators allow blood to flow more easily through your veins and arteries by relaxing the tiny muscles found in blood vessel walls.
Research indicates that ingesting cayenne pepper increases circulation, improves blood vessel strength and reduces plaque buildup in your arteries (7).
Pomegranates are juicy, sweet fruits that are particularly high in polyphenol antioxidants and nitrates, which are potent vasodilators.
Consuming pomegranate — as juice, raw fruit or supplement — may improve blood flow and oxygenation of muscle tissue, which could especially aid active individuals.
A study in 19 active people, found that ingesting 1,000 mg of pomegranate extract 30 minutes before working out increased blood flow, blood vessel diameter and exercise performance (9).
Another study demonstrated that daily consumption of 17 ounces (500 ml) of pomegranate juice during or before weight training reduced soreness, muscle damage and inflammation in elite weightlifters (10).
Onions are an excellent source of flavonoid antioxidants, which benefit heart health.
This vegetable improves circulation by helping your arteries and veins widen when blood flow increases.
In a 30-day study in 23 men, taking 4.3 grams of onion extract daily significantly improved blood flow and artery dilation after meals (11).
Onions also have anti-inflammatory properties, which can boost blood flow and heart health by reducing inflammation in veins and arteries (12).
Cinnamon is a warming spice that has many health benefits — including increased blood flow.
In animal studies, cinnamon improved blood vessel dilation and blood flow in the coronary artery, which supplies blood to the heart.
Rats fed 91 mg per pound (200 mg per kg) of body weight of cinnamon bark extract daily for eight weeks exhibited better heart performance and coronary artery blood flow after exhaustive exercise compared to rats in the control group (13).
Plus, research shows that cinnamon can effectively reduce blood pressure in humans by relaxing your blood vessels. This improves circulation and keeps your heart healthy (14).
In a study in 59 people with type 2 diabetes, 1,200 mg of cinnamon per day reduced systolic blood pressure (the top number of a reading) by an average of 3.4 mmHg after 12 weeks (15).
Garlic is well known for its beneficial impact on circulation and heart health.
Studies suggest that garlic — specifically, its sulfur compounds, which include allicin — can increase tissue blood flow and lower blood pressure by relaxing your blood vessels.
In fact, diets high in garlic are associated with better flow-mediated vasodilation (FMD), an indicator of blood flow efficiency.
In a study in 42 people with coronary artery disease, those who consumed garlic powder tablets containing 1,200 mg of allicin twice daily for three months experienced a 50% improvement in blood flow through the upper arm artery compared to a placebo group (16).
6. Fatty Fish
Fatty fish like salmon and mackerel are excellent sources of omega-3 fatty acids.
These fats are especially beneficial for circulation because they promote the release of nitric oxide, which dilates your blood vessels and increases blood flow (17).
What’s more, fish oil supplements are linked to reduced high blood pressure and improved blood flow in skeletal muscle during and after exercise.
For example, in a study in 10 healthy men, high doses of fish oil — 4.2 grams daily for four weeks — significantly improved blood flow to the legs after exercise (19).
Many athletes supplement with beet juice or beet powder to help improve performance.
This is because beets are high in nitrates, which your body converts into nitric oxide. Nitric oxide relaxes blood vessels and increases blood flow to muscle tissue.
Beet juice supplements improve oxygen flow in muscle tissue, stimulate blood flow and increase nitric oxide levels — all of which can boost performance (20).
Aside from assisting athletes, beets improve blood flow in older adults with circulatory issues.
In a study in 12 older adults, those who drank 5 ounces (140 ml) of nitrate-rich beet juice per day experienced significant decreases in blood pressure, clotting time and blood vessel inflammation than those who consumed a placebo (21).
Increased blood flow is one of turmeric’s many health benefits.
Research suggests that a compound found in turmeric called curcumin helps increase nitric oxide production, reduce oxidative stress and decrease inflammation.
In a study in 39 people, taking 2,000 mg of curcumin daily for 12 weeks led to a 37% increase in forearm blood flow and a 36% increase in upper arm blood flow (23).
9. Leafy Greens
Leafy greens like spinach and collard greens are high in nitrates, which your body converts into nitric oxide, a potent vasodilator.
Eating nitrate-rich foods may help improve circulation by dilating blood vessels, allowing your blood to flow more easily.
In a 27-person study, those consuming high-nitrate (845 mg) spinach daily for seven days experienced significant improvements in blood pressure and blood flow compared to a control group (24).
What’s more, research has observed that people following a traditional Chinese diet high in nitrate-rich vegetables like Chinese cabbage have lower blood pressure and a significantly decreased risk of heart disease than those who consume a typical Western diet (25).
10. Citrus Fruits
Citrus fruits like oranges, lemons and grapefruit are packed with antioxidants, including flavonoids.
Consuming flavonoid-rich citrus fruits may decrease inflammation in your body, which can reduce blood pressure and stiffness in your arteries while improving blood flow and nitric oxide production (26).
In a study in 31 people, those who drank 17 ounces (500 ml) of blood orange juice per day for one week had significant improvements in artery dilation and large reductions in markers of inflammation such as IL-6 and CRP compared to a control group (27).
Walnuts are loaded with beneficial compounds, such as l-arginine, alpha-lipoic acid (ALA) and vitamin E — which all stimulate the production of nitric oxide.
Eating walnuts may reduce blood pressure, improve blood vessel function and decrease inflammation, which may be particularly helpful for those with diabetes (30).
People with diabetes often have circulation issues and high blood pressure due to blood vessel damage caused by uncontrolled blood sugar levels (31).
Research reveals that tomato extract works similarly to ACE-inhibiting drugs — opening up your blood vessels and improving blood flow.
Berries are especially healthy — they have antioxidant and anti-inflammatory qualities, which may have a positive impact on blood flow.
Chronic inflammation can damage blood vessels and raise your blood pressure, which can cause circulatory issues.
Ginger, a staple in traditional medicine in India and China for thousands of years, can likewise lower blood pressure and improve circulation (37).
In both human and animal studies, ginger has been shown to reduce high blood pressure, which negatively impacts blood flow (38).
In a study in 4,628 people, those who consumed the most ginger — 2–4 grams per day — had the lowest risk of developing high blood pressure (39).
Kubala, Jillian. “The 14 Best Foods to Increase Blood Flow and Circulation.” Healthline, Healthline Media, 7 Nov. 2018, www.healthline.com/nutrition/foods-that-increase-blood-flow#section16. Accessed 5 Feb. 2020.
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