If you own the first edition of IBS--Free at Last! you are in possession of a very effective game plan for managing your IBS symptoms. That game plan is still intact in the second edition: begin by removing most sources of FODMAPs carbohydrates from your diet for a few weeks. If your symptoms improve, begin reintroducing FODMAPs in a carefully controlled way. Monitor symptoms all the while, to figure out what your problem areas are, and adjust your diet accordingly.
The second edition does contain over 50 pages of extra details about questions raised by my readers, and of course I would be very pleased if you decide to buy it (for less than the price of a single 17.9 oz bottle of Miralax:), but you can still use your first edition successfully. The first edition still works because the big ideas are all there. Here are a some updates on the details of the elimination phase of the diet:
Grains/Starches: Rye is out (fructans). Quinoa, amaranth, millet, oat bran and rice bran are in. Corn meal and popcorn are still in.
Fruits: Blackberries are out (polyols). Cantaloupe, dragon fruit, durian, grapes, honeydew melon, kiwi, papaya, pineapple, prickly pear and rambutan are in. All portions are now 1/2 cup for allowed fruits, 1/3 cup for allowed juices. All fruits are bold (do not exceed portion size shown per meal)
Vegetables: Broccoli and kale are out (fructans/polyols) Cauliflower, sweet corn and mushrooms are out (polyols). Onion and garlic powder are out (fructans). Chives and scallions (green part only) are in. Bok choy, fennel bulb, green beans and turnips are in, but are bold (do not exceed 1/2 cup portion size). Green bell peppers, green peas, okra and sweet potatoes are still in, but are now bold (do not exceed 1/2 cup portion size). Please correct two errors in your second edition: Strike globe artichokes from the allowed list (fructans). Strike collard greens from the lists of food sources of nutrients beginning on pg. 108 (not analyzed yet but are related to cabbage and other brassica family vegetables). As of October, 2012 arugula/rocket, seaweed/nori, and water chestnuts are allowed on the elimination phase of the diet.
(Note: I am aware that some other resources correctly say that by shrinking the portion sizes on beets, broccoli, Brussels sprouts, sweet corn kernels, and fennel, it is OK to consume them on a low-FODMAP diet. I used the published nutrient data to calculate the FODMAPs in ½ cup portions of these foods. I combined the resulting numbers with my clinical experience and decided to omit these foods from the Elimination Phase of my diet. Even if you discover through the challenge phase that you don’t tolerate fructans or polyols very well, you may find that you can include these foods in small portions .)
Fats: Pistachios are out (GOS). Other nuts and seeds are now bold (do not exceed 2 Tablespoon portion size). Coconut meat, milk, and cream are in. As of October, 2012, Chia seeds are allowed in a 1 1/2 Tb. portion.
Meat/Milk: Lactose-free yogurt and kefir are in. Tofu is in (blocks only, not silken tofu which has not been pressed and drained). As of October, 2012, Tempeh is allowed on the elimination phase of the diet.
Extras: Coconut water, golden syrup, cocoa and chocolate are in. As of October, 2012, sherry, port, sparkling wines, and rum are not allowed on the elimination phase.