Lower body weight is helpful even if you're only 10 or 20 pounds overweight. Fatty tissue in a woman's body produces female hormones. These add to those produced by your ovary and other glands and may increase any PMS symptom. Consult weight loss for assistance. A diet with less sugar, less salt and more complex carbohydrates may be helpful.
Complex carbohydrates are starches like rice, bread, pasta, potatoes, corn, peas and beans.
Try eating small amounts every 3 hours. Calcium and magnesium supplements help some women. Calcium will also help you build strong bones to guard against osteoporosis later in life. Unless you have an excellent diet you should take a multi-vitamin every day. The ingredients are usually the same so the cheapest is probably the best choice.