Broccoli, a small green vegetable with a long history in Italy, gets its name from the Italian word "brocco," meaning "arm," which refers to the branching structure of its head. It was brought to France during the Renaissance by Catherine de Médicis and became more widely consumed in the 1980s. Today, two-thirds of France's broccoli production comes from the region of Brittany, where 16,000 tons were harvested in 2023. Broccoli belongs to the Brassicaceae family, which includes other nutrient-rich vegetables such as cabbages, kale, romanesco, and Brussels sprouts. Broccoli is a rich source of various nutrients. Steamed broccoli contains 81.7 micrograms of vitamin B9 per 100 grams, which is important for fetal brain development during pregnancy. It also provides nearly a fifth of an adult's daily vitamin E needs, which supports the immune system, and about 10% of the daily requirement for vitamin B6, which is essential for red blood cell formation. Broccoli contains 340 mg of potassium per 100 grams, helping regulate blood pressure, and is high in water (about 90%) and dietary fiber. It also provides proteins and fiber, with cooked Brussels sprouts offering more fiber than raw white cabbage. In 2024, the average French person consumed 2.4 kilograms of broccoli and cauliflower combined. The way broccoli is cooked affects its nutritional profile. Broccoli contains glucosinolates, sulfur compounds such as glucoraphanin, which are concentrated in its floral buds. When consumed, glucoraphanin is broken down by the enzyme myrosinase into isothiocyanate, which can be converted into sulforaphane, a compound with anti-inflammatory properties. However, cooking methods influence the levels of these compounds. Cooking in cold water reduces their content by 50%, while hot water reduces it by 41%. Short steaming is the best method to preserve these nutrients. Broccoli is also rich in polyphenols (64.9 mg per 100 grams of fresh broccoli) and contains flavonoids like kaempferol and carotenoids such as beta-carotene, lutein, and zeaxanthin, which are associated with eye health and may help prevent age-related macular degeneration. Sulforaphane has been shown to inhibit the growth of Helicobacter pylori, a bacterium linked to ulcers and stomach cancer, by disrupting its cell membrane and metabolic enzymes. Another compound, indole-3-carbinol, derived from glucosinolates, plays a role in cancer treatments such as immunotherapy. Studies suggest that eating cruciferous vegetables—a group that includes broccoli—may reduce the risk of certain cancers, such as colorectal, lung, and breast cancers. In laboratory settings, sulforaphane has been found to counteract the progression of prostate cancer. However, the protective effects of cruciferous vegetables are likely due to the combination of various nutrients, including vitamin C, fiber, and antioxidants, rather than any single substance. According to Mahasti Saghatchian, head of the oncology department at the American Hospital in Paris and co-author of My Anti-Cancer Recipes, no single food or nutrient can prevent cancer on its own. Broccoli and other Brassicaceae vegetables are also a good source of vitamin K, which helps in blood clotting and bone health by supporting the production of osteocalcin, a protein essential for strong bones. Broccoli provides 23.2 micrograms of vitamin K per 100 grams, while Brussels sprouts offer more, at 61.8 micrograms. These vegetables also supply phosphorus, calcium, and vitamin C, which aid in calcium absorption. Kale is particularly rich in vitamin C, providing nearly the full daily requirement for adults. However, consuming large amounts of certain cabbages, such as raw kale or cooked mustard cabbage, may exceed the recommended vitamin K intake, which could interfere with anticoagulant medications. People on such treatments should consume these vegetables in moderation. The Brassicaceae family, also known as Cruciferae, includes over 300 genera of flowering plants, such as Brassica (which includes cabbages, turnips, and rapeseed) and Eruca (arugula). When these plants are cut, crushed, or chewed, they release isothiocyanate, a sulfur compound responsible for the spicy taste and smell of vegetables like mustard, radishes, and horseradish. Sulforaphane, a compound found in broccoli, cauliflower, kale, and Brussels sprouts, is being studied for its potential anti-inflammatory benefits.