A famous crash diet from the 1980s is still making the rounds, so let’s look at what it involves and where it falls short.
Some diets quietly disappear after their moment of fame. The cabbage soup diet is not one of them. Decades after it first spread through office break rooms and photocopied recipe sheets, people still turn to it hoping to drop weight fast, with some reporting losses of up to 10 pounds in a single week.
The plan is exactly what it sounds like: a week built around unlimited cabbage soup, supported by a rotating cast of fruits, vegetables, and a few other foods. It delivers quick results on the scale, but it was never designed for the long haul. If you’re weighing it against steadier approaches like a calorie deficit you can actually sustain, here’s what you should know first.
Key Takeaways
– The cabbage soup diet is a 7-day, very low-calorie plan where homemade cabbage soup is the main food, eaten as often as you like.
– It works through sharp calorie restriction plus high fiber and low sodium, which pushes the body to draw on fat stores for energy.
– Each day adds specific foods, starting with low-sugar fruits on Day 1 (bananas are excluded because of their calorie content).
– It suits short-term goals only. Staying on it long term can weaken the immune system.
– Anyone with a heart condition or other health concerns should talk to a doctor before starting the diet or its exercise routine.
What the Cabbage Soup Diet Actually Is
According to ACE-certified health coach Kathrine Kofoed, the diet took off as a fad in the 80s. The original version meant eating only cabbage soup and fruit (no bananas) for a week, with a few extras like skim milk allowed after the first few days.
It belongs to a broader trend sometimes called “souping,” where soup becomes your main source of calories. The appeal is obvious. The rules are simple, the soup is cheap to make, and you never have to count anything. Because the plan leans entirely on plants, it also works for vegans, which is one reason it overlaps with the logic behind a plant-based way of eating, minus the sustainability.
How a Bowl of Soup Triggers Weight Loss
There’s no magic compound hiding in cabbage. The diet works because it slashes your calorie intake dramatically, which forces your body to tap stored fat for energy. The soup itself is low in calories and sodium and high in fiber, a combination that keeps you feeling full while your total intake stays tiny.
That fiber-heavy, low-calorie profile is also why cabbage-based soups are sometimes recommended to patients with obesity. Pair the week with about half an hour of daily movement and the scale tends to move quickly, often faster than the early weeks of a moderate eating plan.
One honest caveat: this plan simply isn’t built for long-term weight loss, so results this fast may not stick once normal eating resumes. This is where a gentler structure, like a 7-day vegetarian meal plan for weight loss, holds up better over months rather than days.
What You Can Eat During the Week
SaveCabbage soup is the anchor, and you can eat it as many times a day as you want. Hunger is not supposed to be part of this diet. Around the soup, each day adds its own category of foods.
Day 1 pairs the soup with fruit, and the recommendation is to reach for low glycemic index options such as apples, oranges, kiwis, peaches, plums, guava, and melon. Bananas sit on the banned list for this day because they’re relatively high in calories. Many followers start the morning with warm water and lime juice to flush out toxins and wake up the metabolism.
Day 2 shifts to vegetables. Green tea, black tea, or black coffee opens the day (caffeine may give weight loss a small nudge), followed by a vegetable smoothie at breakfast, cabbage soup loaded with leafy greens at lunch, and soup with grilled vegetables at dinner. Cucumber and carrot sticks handle snack cravings.
A few practical rules run through the whole week:
Stick to healthy fats such as olive oil, flaxseed oil, ghee, and nut butters; skip lard, margarine, and mayonnaise.
Season freely with garlic, ginger, turmeric, cumin, black pepper, and fresh herbs so the soup doesn’t bore you to tears.
Avoid alcohol, packaged juices, ketchup, soy sauce, and creamy dips.
Don’t overload on fruit in one sitting, since the natural sugars can spike blood glucose in people with diabetes.
Drink plenty of water, and don’t panic if you feel a little weak. That’s a normal response to the sudden drop in carbs and sugar.
A Word on Exercise
SaveThe plan recommends about an hour of movement on Day 1: a warm-up, a run (treadmill or park, with breaks if you’re new to running), then two sets of five push-ups and sit-ups, jumping jacks, rope jumping, stair runs, scissor legs, and a finishing stretch. If a full hour sounds ambitious on so few calories, that instinct is worth listening to. Simpler no-gym workouts for a lean body can fill the slot without leaving you wiped out.
Anyone with a heart condition, or any issue that makes vigorous exercise risky, should get a doctor’s or trainer’s sign-off before attempting this routine.
The Downsides Nobody Mentions
The biggest problem is what happens after Day 7. The plan was never meant for long-term weight loss, and stretched beyond a week, the limited food variety can weaken your immune system. Feeling weak or low on energy is also possible even within the week itself.
Think of it as a short reset, not a lifestyle. For results that survive past the first weigh-in, the fundamentals of eating a balanced diet without obsessive counting will serve you far better.
Frequently Asked Questions
How much weight can you lose on the cabbage soup diet?
Many people report losing up to 10 pounds in the 7-day period. Keep in mind that results vary from person to person, and the plan is not designed to deliver lasting, long-term weight loss.
Can I eat other foods besides cabbage soup?
Yes. The soup is the staple, but each day adds approved foods such as fruits, vegetables, and select proteins, along with beverages like green tea, herbal tea, and coconut water. Specific items, including bananas on Day 1, potatoes, grains on most days, and all alcohol, are off the list.
Is the cabbage soup diet safe for everyone?
No. It’s a very low-calorie crash diet, so people with diabetes, heart conditions, or other medical concerns should consult a doctor first. It should never be followed for longer than the 7-day window, since extended use can compromise immunity.
The Bottom Line
The cabbage soup diet does what it advertises: fast, short-term weight loss driven by severe calorie restriction, high fiber, and low sodium. Unlimited soup keeps hunger manageable, and the daily food additions supply some variety and nutrients. But it’s a sprint, not a strategy. Watch for fatigue, don’t stay on it past the week, and treat it as a kickstart that hands off to a sustainable eating pattern, not a plan to repeat month after month.
This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before starting any diet, supplement, or exercise program, especially if you have an existing medical condition.
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