Red cabbage is a cabbage variety with dense purple-red leaves. Its color comes from anthocyanins, plant pigments that shift shade depending on acidity.
It is slightly denser and often brighter in salads than white cabbage. For low-carb eating, it is a practical vegetable because it is low in calories, provides fiber, and is easy to portion.
Use and background
Red cabbage is used in European cooking for salads, braised side dishes, pickling, fermentation, and warm meat dishes. Acidic ingredients such as lemon juice or vinegar make the color brighter.
Raw red cabbage keeps its crunch well. Cooked cabbage is softer, but some vitamin C can be lost, so both raw and cooked forms have their place.
Nutrition
Per 100 g, red cabbage provides about 31 kcal, 1.4 g protein, 0.2 g fat, and about 7 g carbohydrates, with around 2 g fiber. Net carbohydrates are usually close to 5 g.
It is notable for vitamin C, vitamin K, potassium, manganese, fiber, and anthocyanins. It is not a meaningful protein source.
Keto relevance
Red cabbage has a low glycemic index and a low glycemic load in normal portions. It fits keto and LCHF especially well in salads with olive oil, fermented vegetables, meat, fish, or eggs.
On strict keto, portion size still matters. People with sensitive digestion may tolerate cooked cabbage better than large raw portions.
Choosing and storage
Choose a dense, heavy head without wet dark spots, mold, or wilted outer leaves. A fresh cut and vivid color are good signs.
Store it in the refrigerator and use sliced cabbage sooner, because aroma and vitamin C decline over time.
