Dietary supplements are products used to make up for nutritional deficiencies or to support a specific goal such as weight loss, muscle gain, more energy or a stronger immune system. They can include vitamins (such as vitamin D and B-group vitamins), minerals (such as iron and magnesium), proteins, amino acids, fatty acids such as omega-3, and even herbal compounds. They are usually recommended when a person cannot fully meet their body’s needs through their daily diet, or is in special circumstances such as pregnancy, professional sport or a restrictive diet.

However, supplements should be taken consciously and preferably after consulting a doctor or nutritionist, because taking too much of some micronutrients can cause side effects. It is also important to remember that supplements are not a substitute for a healthy, balanced diet; their role is complementary. Choosing a reputable brand, paying attention to the dose and checking the ingredients label are key to using dietary supplements correctly.