Although millions of people take supplements daily to help stay healthy, lose weight and make up for vitamin deficiencies, some pose a great risk according to experts. Supplements can cause severe interactions with other medications, many people can experience intolerable side effects and certain supplements can raise the chances of serious health issues like a heart attack. There are a few supplements to be cautious of and Eat This, Not That! Heath talked to Dr. Jagdish Khubchandani, MBBS, Ph.D. Professor of Public Health New Mexico State University who explained which ones to be wary of. Read on—and to ensure your health and the health of others, don’t miss these Sure Signs You’ve Already Had COVID . woman taking vitamin d supplement with water Dr. Khubchandani says, "The worst mistake is to take diet supplements indiscriminately, without careful consideration or a prescription by heart disease patients- such behaviors can worsen cardiovascular disease due to lack of appropriate preventive or therapeutic measures and a sole focus on diet supplements. They are generally not recommended for treatment of heart disease or even for prevention ." woman with medicine jars at home According to Dr. Khubchandani, "Choline is essential for brain and nervous system functions. Also, our body needs choline to form cell membranes. Many diet supplements (e.g. multivitamins) have choline, but one has to be careful about excess consumption. There is some evidence to suggest that excess choline consumption can cause heart attacks—the dosage for this supplement needs careful attention. The right amount can actually be protective for heart health." calcium pills "Calcium supplement related research on heart disease risk is an ongoing subject of investigation and there is mixed evidence on the impact," Dr. Khubchandani explains. "While calcium supplements have many benefits, people should make it a priority to gain calcium from natural sources. If at all a calcium supplement is to be taken or is being used by someone, people need to be careful about dosage and avoid excessive consumption which could impact heart health."