Both of them are AX3 in terms of structural diagrams, no? why would they appear as different strucutural shapes
Whole Grains such as: -oatmeal -whole grain bread -All bran high fiber cereal -whole wheat tortillas (a personal favorite is garlic and herbs low carb tortillas by La Tortilla factory [8grams of fiber]) Almost all vegetables offer some fiber Fruits such as: apples, blueberries, avacados, plums, cherries and [most] fruits with skinAlso, lots of health drinks and bars are fortified with fiber.Kellogs makes some fiber powders that taste and look like lemonade and Sweet teaThese drinks can offer anywhere from 5 to 10grms of fiber per servingBeans and other legumes offer some too.
The formula similarities are not enoughThe fluoride is probably an ionic salt while the PI3 is a covalently bonded compound.
Beans such as lentils, black beans, kidney beans and pinto beans have some of your highest amounts of fiberWhole wheat pastas and bran cereals are good as well, then fruits and vegetables, especially pears and apples, brussel sprouts, potatoes with the skin on, corn, even popcorn is good Many cereals and breads are listed with higher fiber content than other so read the labelsHope this helps you some.