Dietary supplements are any vitamin, mineral, herbal product or other ingestible preparation that is added to the diet for health benefits.
Examples are -
Citrulline Malate
Creatine
Branched Chain Amino Acids
Curcumin
Fish Oil
Testosterone Boosters
Vitamin C
Vitamin D
Zinc
Green tea
Glucosamine
Echinacea
Ginseng
Garlic.