Cabbage (Brassica oleracea var. capitata) is a leafy, dense-headed biennial plant of the cruciferous (Brassicaceae) family, revered across culinary traditions for its crisp texture, peppery crunch, and deep health-promoting properties. Whether enjoyed raw in slaws and salads, sautéed in stir-fries, or fermented into probiotic kraut and kimchi, fresh cabbage serves as an exceptional low-calorie, high-volume whole food for ketogenic diets, fat-loss plans, and gut-healing protocols. When evaluating cabbage nutritional value per 100g (raw green cabbage), it provides approximately 25 calories, 5.8 grams of total carbohydrates, and over 92% water content, making it one of the most energy-dilute, filling vegetables available. For a standard dietary portion—commonly logged as 1 cup shredded raw cabbage (approx. 89 grams)—the nutrient yield delivers roughly 22 calories and 5.2 grams of total carbohydrates.

Low Net Carbs, Prebiotic Fiber & Glycemic Control

The carbohydrate structure of raw cabbage consists primarily of complex structural plant fibers balanced by gentle, natural sugars. A 1-cup shredded serving contains approximately 2.9 grams of naturally occurring sugars—composed of glucose and fructose—alongside 2.2 grams of dietary fiber (2.5g per 100g). This yields a negligible net carbohydrate count of just 2.9 grams per cup. Over 60% of cabbage fiber is insoluble cellulose and hemicellulose, which adds physical bulk to stool and speeds intestinal transit time. The soluble fraction contains prebiotic pectins that nourish Bifidobacterium species in the colon, prompting the production of short-chain fatty acids (SCFAs) like acetate and butyrate. With a very low glycemic index (GI ~10 to 15) and a negligible glycemic load (~1 per cup), cabbage ensures complete blood glucose and insulin stability.

Glucosinolates, Sulforaphane & Detoxification

Cruciferous vegetables like cabbage are uniquely distinguished by their sulfur-rich phytochemicals:

• Glucosinolates & Myrosinase: When cabbage leaves are sliced, chewed, or crushed, the plant enzyme myrosinase hydrolyzes dormant glucosinolates (such as glucobrassicin and sinigrin) into biologically active isothiocyanates and indoles, including indole-3-carbinol (I3C) and sulforaphane.

• Phase II Liver Detoxification: These isothiocyanates stimulate the Nrf2 pathway and induce Phase II hepatic detox enzymes (such as glutathione S-transferase), enhancing the clearance of metabolic waste, xenobiotics, and environmental toxins.

• Gut Mucosal Healing (Vitamin U): Raw cabbage juice has a long clinical history in gastroenterology for supporting mucosal ulcer healing, largely attributed to S-methylmethionine (historically coined "Vitamin U"), which strengthens gastric mucosal barrier resilience and reduces acid-induced inflammation.

Exceptional Micronutrients: Vitamin K1, Vitamin C & Folate

Cabbage delivers a potent spectrum of bioavailable daily vitamins and essential minerals:

• Vitamin K1 (Phylloquinone): Supplying 76 µg per 100g and over 67.6 µg per cup shredded, a single serving fulfills roughly 56% of the daily value (DV). Vitamin K1 is indispensable for activating hepatic blood-clotting factors (prothrombin) and carboxylating osteocalcin, the primary protein required to anchor calcium into bone minerals.

• Vitamin C (Ascorbic Acid): Delivering 36.6 mg per 100g (over 32.6 mg per cup), cabbage covers roughly 36% to 40% of the recommended daily intake. Vitamin C scavenges cellular reactive oxygen species, promotes collagen cross-linking for joint and skin elasticity, and multiplies the intestinal absorption of plant-based non-heme iron.

• Folate (Vitamin B9) & Potassium: A shredded cup provides 47 µg of bioavailable folate to support cellular DNA replication, along with 151 mg of potassium to aid intracellular hydration and counteract dietary sodium.