Turmeric is a type of spice that is also claimed to have several medicinal properties, such as helping with depression, heartburn, and even cancer. This herbal remedy contains several compounds that may help to stimulate the immune system, provide anti-inflammatory effects, and prevent blood clots. Although consuming turmeric in normal amounts through food is probably safe, more research is needed to conclude that turmeric is safe when used medicinally. Possible side effects of turmeric can include nausea and diarrhea.