Fishoil is made up of EFA’s, An essential nutrient the body requires but can not manufacture and therefore must be supplied by diet.
The modern diets is just not sufficient enough to get the required amount of Omega 3 and maintain proper 1:1 ratio with Omega 6. Thus supplementing with fish oil is required
Being toxic with omega 6 fatty acids and deficient in omega 3 fatty acids is a deadly combination that is shown to increase the chances of illness in people of all ages. Illnesses associated with omega 6 fatty acid toxicity and/or omega 3 fatty acid deficiency include ADHD, allergies, eczema, asthma, breast cancer, colon cancer, prostate cancer, lowered immunity, heart disease, strokes, diabetes, high blood pressure, depression, fibromyalgia, ulcerative colitis, Crohn’s disease, arthritis, osteoporosis, and Alzheimer’s, painful menstruation, back pain, neck pain, and headaches