I agree that this is so confusing. I ate a plant-based diet 90% of the time and was woefully negligent on consuming the proper amounts of calcium and protein. Now I find out about antinutrients and everything I have been eating (beans, nuts, whole grains) interfere with calcium absorption. Yikes. If I remove all that food in my diet, I really don't know what else to eat. Regarding beans, most times I use canned beans and I read somewhere that canned beans are already cooked and processed (through canning) therefore antinutrients are minimal. But then again maybe they're not? I started eating cheese everyday for a food-based calcium source and found that my arthritis has flared-up significantly since. I wish there was an osteoporosis diet designed for optimal absorption of minerals and supplements. All these various recommendations are absolutely nerve-wracking: Don't take calcium and magnesium together, Don't take Vitamin D and Vitamin K together, etc. It's like a fulltime job trying to figure out what I'm going to eat, when I'm going to eat it, and how to space my supplements for maximum absorption.