No matter how good it may be for others out there, Papaya poses a threat for these 5 types of people: Pregnant women: Risks of unripe papaya According to a study by NIH, pregnant women are advised to be cautious with papaya, especially the unripe or semi-ripe ones. The reason behind this is that unripe papaya consists of latex and is high in papain which can trigger uterine contractions, increase the risk of preterm labor or create pregnancy complications. People with heart rhythm disorders Papaya also consists of cyanogenic compounds that can release small amounts of hydrogen cyanide in the body. While it is harmless in moderation, individuals with irregular heartbeats or other heart conditions may experience adverse effects and excessive consumption of papaya can lead to worsening of heart rhythm issues or interact with medication. People with latex allergies Papaya is known to contain proteins like chitinases, which can trigger an allergic reaction in those who are sensitive to latex. If you have a latex allergy or know someone who does, it is best to avoid the food entirely. People with hypothyroidism Such individuals should also consume papaya cautiously. The fruit consists of certain compounds that may interfere with thyroid functioning and potentially aggravate symptoms like fatigue, cold intolerance or weight gain. People who are prone to kidney stones Papaya is known to be rich in vitamin C, which is then converted into oxalate in the body. The presence of excess oxalate in the body can combine with calcium to form calcium oxalate kidney stones. Thus, those who have a history of kidney stones or are prone to them should not let the fruit on their plate.