BRAVE AI:
High Phosphorus Foods
Foods containing high levels of phosphates include protein-rich foods such as dairy products (e.g., milk, cheese, yogurts), meats, fish, and poultry.
Nuts, seeds, wholegrain foods, and foods containing bran are also high in phosphates.
Additionally, phosphate food additives, which can be labeled as phosphorous, phosphates, hexametaphosphates, diphosphates, triphosphates, and polyphosphates, contribute significantly to phosphate intake.
High-phosphate foods also include organ meats like beef brain and liver, seafood such as cuttlefish, chicken, turkey, pork, beans, lentils, soy products, and whole grains.
Processed foods, including ready-to-eat foods, fast foods, canned foods, and pre-packaged foods, often contain phosphorus-based additives.
Phosphorus is also found in high-protein foods, dairy products, nuts, seeds, dried beans and peas, chocolate, colas, and whole grain foods.
IOW, EVERYTHING THEY TELL US TO EAT THAT IS ‘HEALTHY’..............
This is mostly hitting on supplemental phosphates. Apparently, the kind that come naturally are not fully absorbed, while additive forms are nearly completely absorbed and also are in amounts that can be high.
This is what I found to help understand phosphate:
Phosphate Additives in Food—a Health Risk
https://pmc.ncbi.nlm.nih.gov/articles/PMC3278747/pdf/Dtsch_Arztebl_Int-109-0049.pdf
Phosphates in higher than 700 mg a day amounts appear to cause abnormal aging.
Page four of the PDF describes amounts of natural vs. added phosphate sources, which helps you determine what to curb or have more of.