Turmeric is the 3rd best-selling spice after wheat-grass and flax and its sales are constantly going up, especially in the last couple of years. Curcumin is the main ingredient in turmeric and it is a very popular food additive that has a nice, mild aroma and a potent yellow color. Many people consider that it has no unwanted side-effects, but they will be surprised to find out that it’s not totally true.

Usually people think that if something is natural it cannot be toxic or dangerous for their health. But, have you considered that cyanide and strychnine are both natural yet extremely toxic and they are even deadly! Lead, plutonium and mercury are on the periodic system of elements, they are natural too, but they are highly toxic. Or, maybe you think it’s a plant, so it can’t be dangerous? To some point you are correct, it can’t cause any major side-effects but there are people who have complained to nausea, diarrhea, dizziness and stomach pains from consumption of turmeric. Moreover, maybe you have heard that the bio-availability of curcumin could be increased by 2000% when combined with black pepper and only a single dose of turmeric can feel like 29 cups in no time.  This is going to result in increased blood levels and also in changes in the DNA in-vitro.

That’s the reason why there are certain groups of people who shouldn’t consume turmeric.

  1. People with gallstones

In case you are suffering from gallstones you have to avoid turmeric as much as you can. As it was found in some recent studies, turmeric is a spice that can cause severe problems and pain in the gallbladder and that’s why people with gallstones are not supposed to consume it at all. However, if you are not suffering from gallstones, curcumin is able to lower the risk of gallbladder stones and protect the liver by stimulating bile flow and stimulating the gallbladder functions.

  1. Pregnant or breastfeeding women

These women shouldn’t consume turmeric or they should consume it with extreme caution. It’s not safe for this group of person to consume it orally as it can put their pregnancy at risk by encouraging the menstrual cycle or by stimulating the uterus. Turmeric is also not recommended for men who are trying to be dads since it can lower the testosterone levels and sperm movement and as a consequence reducing their fertility.

  1. People with biliary tract obstruction

It has been proven that those persons who are suffering from biliary tract obstructions have to restrain from consuming turmeric or to consume it very cautiously.

  1. People with diabetes

If you are among those persons who are suffering from diabetes you have to monitor closely your turmeric intake as it has been connected to decreased blood sugar levels. Of course, you can consume turmeric but in controlled amounts in order to maintain the blood sugar levels balanced.

  1. People with kidney stones

If you eat turmeric each day and you eat it in high amounts you are at risk of developing kidney stones. This spice contains high levels of soluble oxalate which can easily attach to calcium and create insoluble calcium oxalate which is the culprit for almost 75% of all kidney stone issues. If you are prone to kidney stones formation you have to be very careful regarding turmeric. You have to limit you daily intake of total dietary oxalate to fewer than 50 mg per day.

  1. People who should have a surgery

If you have a surgery scheduled soon, you need eliminate turmeric from your diet for at least three weeks before the surgery. This is because turmeric can reduce the blood clotting and can lead to excessive bleeding during the surgery and that isn’t something you want to go through.