There are thousands of supplements out there that all claim to have health benefits, but it’s difficult to know whether they’re telling the truth. Some of them are great for you, others might just do nothing at all. But in some cases, they can actually be incredibly bad for you and if you take them in large quantities, you can damage your health considerably. That’s why it’s important to do a bit of research before you start taking any of them and consult a doctor to make sure that it’s safe. If you take lots of supplements, then check this list to make sure you aren’t taking any of these unsafe ones.


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Rock Based Calcium


Calcium can’t be bad, surely? Calcium, in general, isn’t bad. It promotes healthy bones and teeth and everybody should get a good amount in their diet. However, when it comes to supplements, the most common varieties are ones that are extracted from rocks like limestone. These supplements can actually have negative effects on your health. It causes digestive problems and constipation in lots of people so it should be avoided. That doesn’t mean you shouldn’t take calcium supplements at all though. AlgaeCal plant calcium side effects are nonexistent because it is made from plant algae. This is far easier to digest than the traditional rock based supplements so you don’t get any of the stomach problems that usually come with calcium tablets.


Green Tea Extract Powder


This is another one that fools people quite often because drinking green tea in its normal form is actually very good for you. But the extract in powder form that some people are taking has quite a long list of negative side effects. Retailers boast of the extract’s weight loss powers, but that comes at a price. It causes dizziness, increases blood pressure and heart rate, and damages your liver. But the worst effect that it has is reducing your body’s ability to absorb iron. If you’re taking large amounts of this stuff, you massively increase the risk of developing conditions like anemia that are caused by low levels of iron.


Caffeine Powder


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Most of us consume caffeine on a daily basis from coffee or tea, but taking a concentrated powder form has become a recent trend in the fitness world. People are using it as a pre-workout supplement to boost their energy levels. While studies have shown that small amounts of caffeine can actually be beneficial, taking this amount is definitely not good for you. Side effects include seizures, bad sleep patterns, irregular heartbeat, and even heart attacks if you go overboard. So, next time you hit the gym, don’t pump yourself up with dangerous amounts of caffeine. You’ll just have to rely on good old fashioned motivation to get through your workouts.


These are just a few of the supplements on the market that are bad for you, but there are thousands more out there. It is difficult to know which ones do what they say, and which ones are dangerous. The best thing to do is speak to your doctor and do extensive research before putting any new substance into your body, regardless of what the retailers have promised you.