A Bland diet can be used indefinitely for those who have health conditions such as those listed above, however, it is not recommended to be used for long-term weight loss benefits. Short term weight loss results with a bland diet have proven to be effective.Bland diet: Foods to eat and avoidFoods you can eat while on a bland diet include: Creamy peanut butterPudding & CustardEggsTofuSoup, especially brothWeak teaMilk & dairy products, low-fat or fat-free...