Podcast episode 95 (in German)
HCG – a question answered 31 years ago
October 3, 2026
An analysis from 1995 answered the question of whether HCG does anything for weight loss. The answer is no, it is 31 years old, and the business carries on regardless. This episode explains why that works.
What it is about
HCG is a real, prescription-only medicine: in fertility treatment it triggers ovulation, and in certain forms of testosterone deficiency it gets the body’s own production going. In the mid-1950s, a doctor in Rome turned it into a weight-loss cure — a daily injection plus a diet of 500 kilocalories, about a quarter of what the body needs. The episode cleanly separates the two halves of this cure: one is expensive and ineffective, the other is free and risky. It also covers why drops sold without a prescription cannot reach their target pharmacologically at all, and why, for once, a high evidence score is the worse news here.
Key points
- An analysis from 1995 pooled 24 studies, 14 of them randomized, with a combined 605 participants.
- In 12 of the 14 randomized studies, weight loss under HCG was no greater than under placebo or under the diet alone.
- The cure combines the injection with 500 kilocalories per day, roughly a quarter of what the body needs — that is the part that reliably delivers 2 kilos per week.
- Its origin is an observation from the 1950s without a control group, without measurement and without a second observer: an anecdote that has survived 80 years.
- Human evidence stands at 8 because the 14 randomized studies count. They are evidence; they just say no.
- Drops sold without a prescription fail on biochemistry: HCG is a large protein molecule and is digested when swallowed, and many products are also homeopathically diluted — what remains is the 500-calorie diet.
Where the data stop
This is not where the data stop — this is where the attribution is wrong. The concluding sentence of the 1995 analysis is unambiguous: no scientific evidence that HCG causes weight loss, redistributes fat, keeps hunger at bay or creates a sense of well-being. Such clarity is rare in this series.
Something else remains open: using HCG to maintain the body’s own production during testosterone therapy is pharmacologically plausible and is mostly prescribed off-label. That is the same substance for a different question and not an argument for the diet. Safety covers both halves: an intake of 500 kilocalories over weeks is malnutrition, with muscle loss, gallstones and electrolyte disturbances up to cardiac arrhythmias — the US drug regulator has explicitly warned that this can be fatal. And the hormone itself has side effects that put it in a physician’s hands.
Listen (in German)
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Published on October 3, 2026.
The topic in the database
- The proven classic for preserving testicular function: hCG mimics LH and directly stimulates the testes to produce testosterone and sperm.hCG (human chorionic gonadotropin)
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Information only, not medical advice and not a usage or dosage recommendation. Prescription-only and unapproved substances belong in the hands of a physician. Last updated: 2026-09-19.