Fennel Health Advantages

The white bulbs, fibrous stalks, feathery foliage and aromatic seeds of the fennel plant offer an abundance of health benefits. The fiber in fennel helps maintain colon integrity and promotes heart health, according to MayoClinic.com. The vitamin C, folate and potassium bolster your immune system and prevent chronic disease, according to the Oregon State Linus Pauling Institute. Enjoy fennel bulbs and stalks grilled, sauteed or baked with your favorite lean meats. The leaves' anise-like fragrance infuses soups and stews with a Mediterranean flavor.

Promotes Digestive Health

Fennel's fibrous bulb and stem, which may remind you of celery, are crunchy when raw but soften during sauteing, braising or baking. According to data from the U.S. Department of Agriculture, 1 cup of sliced fennel bulb provides 3 g of fiber. The insoluble fiber in fennel facilitates the movement of wastes and toxins through your digestive tract and promotes regular bowel function. Eating fiber-rich foods on a regular basis helps prevent diverticulitis, hemorrhoids and constipation, and may protect you against colon cancer, according to MayoClinic.com. Fennel seeds, which you can brew as tea or chew whole, have been used as a home remedy to relieve indigestion, gas and bloating, according to the Foods for Breast Cancer website.

Boosts Immune System

One cup of sliced fennel provides 10 mg of vitamin C -- 11 percent of the recommended dietary allowance, or RDA, of 90 mg for adult males, and 13 percent of the RDA of 75 mg for adult females, according to data from the USDA and the Linus Pauling Institute. Vitamin C provides powerful antioxidant protection against free radicals, chemical compounds that cause the cellular damage that may lead to cancer, according to the Linus Pauling Institute.

Promotes Healthy Heart

One cup of fennel contains 23 mcg of folate, a B vitamin, according to the USDA. Folate breaks down homocysteine, an amino acid that may cause vascular damage when it circulates at high levels in the blood stream, reports the American Heart Association, or AHA. The AHA notes that excessive amounts of homocysteine may contribute to atherosclerosis, a hardening of the arteries that can lead to heart attack or stroke. The AHA recommends eating vegetables and fruits that contain B vitamins daily to keep homocysteine levels within a healthy range. A 1-cup serving of sliced fennel also contains 360 mg of potassium, an essential mineral that helps maintain healthy blood pressure and reduces your risk of stroke, according to the Linus Pauling Institute.

Assists With Weight Loss

Eating high-fiber, low-calorie foods that include fennel may help you meet your weight-loss goals, according to MayoClinic.com. As reported by the USDA, fennel has 23 calories and 3 g of fiber per cup, providing volume with very few calories. Chewing fibrous vegetables like fennel gives your satiety signal time to tell you that you're full, which may keep you from overeating. Add thinly sliced fennel to salads or sandwiches for extra flavor, texture and fiber.

Increases Estrogen Production

Mediterranean cultures have used fennel for centuries to regulate menstrual periods, relieve menstrual cramps and stimulate the uterus before childbirth, according to an article published in the "Journal of Ethonopharmacology." Polymers of anethole, a compound in fennel, are the estrogenic agents that provide these benefits, notes Dr. M. Albert-Puleo, the author of the article. These compounds may also increase milk production in nursing mothers and enhance libido, adds Albert-Puleo. Because fennel's estrogenic compounds may cause uterine contractions, pregnant women should consult a health care provider before consuming herbal preparations made with fennel seeds, advises the Foods for Breast Cancer website.