Studies have shown that certain foods and drink may reduce the healing power of medications, while experts claim that mixing medications and certain foods is not a good idea due to the adverse side-effects they might cause. Below you can see a list of the foods which cause the biggest problems. However, this is only a partial list, which is why we suggest consulting with your doctor about what foods you should and shouldn’t eat when on a certain type of drugs. Additionally, most of the drugs should contain this information on their label.


Kale should never be mixed with blood thinners such as Coumarin. Consuming green vegetable such as kale, cabbage or Brussels sprouts while on blood thinners may cause blood loss as the high amount of vitamin K in the veggies reduces the anti-clotting effects of the drugs.

Grapefruit juice

If you’re on cholesterol-lowering drugs (statins), you should avoid grapefruit juice. Failure to do so may result in enhanced effects of the drug and even leg pain.


Bananas should never be mixed with ACE inhibitors which are taken for high blood pressure and heart failure. These drugs include Captopril, Lisinopril, Zestril and Prinivil. Bananas should also be avoided if you’re on diuretics such as Dyrenium. Mixing the fruit with these drugs will raise the levels of potassium in the body, causing irregular heart beat and putting your health in great danger.


If you’re on thyroid drugs such as Levothroid or Synthroid), you should avoid eating walnuts. Walnuts interfere with proper absorption of the drugs, which can reduce their efficiency and potentially harm your health.

Black licorice

Black licorice shouldn’t be mixed with Digoxin, a medication taken for heart failure and irregular heart rhythm. When combined, a compound known as glycyrrhizin in the herb can cause seriously abnormal heart rhythm which may even be fatal. Mixing black licorice with birth control pills, blood thinners and painkillers will make these drugs far less effective, so you should be wary of it. Additionally, be careful when taking black licorice supplements against acid reflux and heartburn.


Salami shouldn’t be mixed with linezolid of Flagyl which are usually taken against bacterial infections. This can raise your blood pressure quickly and increase the risk of potentially fatal cardiovascular problems.


Finally, milk shouldn’t be consumed if you’re on tetracycline antibiotics, as it interferes with the absorption of the drug and makes it ineffective.

Additionally, you should avoid alcohol when on any type of medication. Alcohol prolongs the effects of the drugs and interferes with their absorption, which might cause problems such as heart palpitations and shortness of breath.

Source: organichealthsolution.com