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What is phosphorus and should I avoid products containing this?
Jan 26, 2007

My boyfriend is Hiv+ and is currently taking the meds Truvada, Ritonavir, and Atazanavir. He sometimes has stomach pains/cramps and has been on the meds since 12/20/06. His dr mentioned to him before he began taking his medication that he should avoid foods/products that contain phosphorus. Can you tell us which foods/products he would need to avoid and what problems too much phosphorus could cause?

Thank you

Response from Dr. Henry

If a person develops kidney problems their phosphorus levels can go up leading to problems with calcium/bone health and other conditions. The tenofovir in Truvada can sometimes cause/aggravate kidney problems. Most patients taking a regimen with tenofovir generally do not need to worry about the phosphorus content of their diet. Here is a link to the National Kidney Foundation discussion about phosphorus ( KH

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