Free: 15-question metabolic assessment — reviewed by the HealthCalculus medical panel. Start now

Fad / Crash · Contested

Cabbage Soup Diet: An honest audit

7-day plan based around unlimited cabbage soup with a daily food rotation

1/10

Sustainability

3/10

Short term

1/10

Long term

01The scorecard

Three numbers, one rubric

Sustainability0/10
WeakStill running it in month twelve
Short-term effect0/10
WeakFirst 12 weeks in trials
Long-term effect0/10
WeakWhat survives at 12–24 months

Category

Fad / Crash

Typical cost

~$50/mo

First visible change

~5 days

Evidence rating

Contested

Studies cited

2

How to read these scores

Sustainability

Weighted heaviest. Adherence predicts outcome more reliably than macro split, so an approach nobody can keep scores low here even when the trial data looks good.

Short-term effect

A high number here alone means very little. Water and glycogen move fast, and almost every restrictive protocol looks impressive at week four.

Long-term effect

Where short-term and long-term diverge sharply, you are usually looking at a regain mechanism built into the design — not a willpower failure.

02The pitch

What it promises — and how it says it works

The claim

What it claims

A 7-day plan with unlimited cabbage soup as the base, plus a rotating daily allowance (e.g., Day 1: fruit only; Day 2: vegetables; Day 3: fruit and vegetables; etc.). Promises 10 lb loss in a week.

The mechanism

How it is supposed to work

Severe calorie restriction (~800-1000 kcal/day) produces rapid water and glycogen loss. The 'cabbage soup' branding is marketing — any 800-kcal monotonous diet would produce similar weight loss.

03The evidence

What the research actually shows

No RCTs. Standard severe-CR caveats apply: muscle loss, metabolic adaptation, full regain after.¹²

Footnote numbers link to the full reference list at the foot of this page.

Evidence rating

Contested

Describes the quality and quantity of the peer-reviewed literature — trial count, duration, sample size and replication — not our opinion of the approach.

Early loss is not evidence. Glycogen carries roughly three grams of water per gram, so the first pounds on almost any restrictive protocol are largely water. What matters is what is still there at twelve and twenty-four months.

04The fit

Right person, wrong person

Almost nothing on this site is universally good or universally useless. The useful question is which body, kitchen and calendar an approach was built for.

Worth a trial

Who it works for

No one for sustainable results.

Look elsewhere

Who it fails

Everyone seeking sustained loss.

05The verdict

Quintessential fad diet. The weight comes off, the weight comes back. No mechanism, no evidence base, real metabolic and muscle-loss costs. Avoid.

Written against the rubric, not against a sponsor. Individual response varies and no outcome is guaranteed.

06The alternative

What to do instead

Anything sustainable. Mediterranean. Whole-food eating. Resistance training.

Not sure which fits

Get a read on your profile

Fifteen questions, roughly two minutes, no email wall on the result. Returns a starter protocol matched to your metabolic situation.

Take the assessment
07Common questions

Straight answers

Cabbage Soup Diet, without the spin

We score Cabbage Soup Diet 1/10 for sustainability, 3/10 for short-term effect and 1/10 for long-term effect. A gap between the short-term and long-term numbers is the single most common pattern in this index — an approach can move the scale quickly and still leave almost nothing behind eighteen months later.

Sustainability is weighted heaviest for a reason: across head-to-head trials, adherence predicts outcome more reliably than which named diet you picked. A protocol you abandon in week six did nothing at all.

Sustainability10%

Can you still be doing this in month twelve?

Short-term effect30%

First 12 weeks in controlled trials

Long-term effect10%

What survives at 12–24 months

Educational summaries of published research. Individual response varies and no outcome is guaranteed.

08Sources

References

  1. 01Fothergill E et al. (2016). Persistent metabolic adaptation 6 years after 'The Biggest Loser' competition. Obesity. PubMed 27136388
  2. 02Rosenbaum M, Leibel RL (2010). Adaptive thermogenesis in humans. International Journal of Obesity. PubMed 20840326
09Your turn

Did Cabbage Soup Diet not work for you?

That is the rule rather than the exception, and it is usually a design problem in the protocol rather than a character problem in you. The assessment reads your situation and points you at the approach the research supports for that profile.

  • Free, with no email wall on the result
  • Fifteen questions, roughly two minutes
  • Returns a starter protocol matched to your profile
  • Every recommendation links back to its research

Educational only, not medical advice. This audit summarises published research and is not a diagnosis, a prescription, or a treatment plan. Consult your physician before major dietary changes or altering prescribed medication. These statements have not been evaluated by the Food and Drug Administration. Individual results vary; no outcome is guaranteed.