In brief: Human chorionic gonadotropin, or hCG, plays an important role, particularly during pregnancy. As a medicinal substance, it is used in clearly defined situations. These uses have nothing to do with hCG pellets or diet promises.
What does hCG do in the body?
After fertilisation, hCG is initially produced by cells that later form part of the placenta. In early pregnancy, it supports the corpus luteum and thereby the production of important hormones. Pregnancy tests detect hCG in urine or blood.
A measured value must always be interpreted in its timing and medical context. Individual values cannot reliably establish the progress or health of a pregnancy.
Approved medical uses
hCG can be used as a prescription medicine, including in certain fertility treatments. It is also used in some situations in male reproductive medicine. Selection, dose and monitoring belong in specialist medical care.
Possible adverse effects depend on the indication and combination of treatments. For example, ovarian hyperstimulation can occur during fertility treatment. The risks of thrombosis and multiple pregnancy must also be considered.
Why hCG is not suitable for weight loss
hCG is not approved as a weight-loss medicine. Studies show no convincing additional benefit for weight loss, hunger or fat distribution. Claims that the hormone reprogrammes the hypothalamus or mobilises only unwanted fat deposits are not established.
Homeopathic pellets often contain no hCG in an active amount. Research on injectable medicines must not be applied to such products.
Particular caution
- No use during pregnancy or childhood without a clear medical indication
- Do not obtain prescription hormones from unclear online sources
- Do not combine with crash diets
- Always seek specialist advice for hormone-dependent conditions or when trying to conceive
Conclusion
hCG is an important hormone and a substance with medical uses, but not a means of weight reduction. For the specific diet method, read The hCG diet and pellets: facts and risks.
Hormone preparations are not for self-medication. Individual questions require gynaecological, endocrinological or reproductive medicine advice.
Source basis: EMA, FDA and prescribing information for approved hCG medicines. Editorial date: August 2026.
