The occurrence of obesity after taking a single capsule of Kim Yuk Ting is purely coincidental in clinical terms. Because gold Yuting is a progestin, progestin does not cause weight gain, only estrogen may cause weight gain. Short-acting birth control pills, such as Dyne-35 or Manfrotto, contain estrogen, which can cause water and sodium retention in the body, which can lead to weight gain. Jin Yuting is a high-efficiency progestin, which does not cause sodium retention in the clinic, so it is purely coincidental that you gain weight after taking a single capsule of Jin Yuting. It is recommended that in daily life, if you are not using contraception, it is best to use condoms. Because oral short-acting contraceptive pills, or emergency contraceptive pills, have certain side effects.