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Writer's pictureCoach Anna

7 essential vitamins for building muscle with one kidney

Building muscle with one kidney is absolutely possible, but it requires a bit more attention to the nutrients you’re getting and how they affect kidney health. Here’s a guide to seven essential vitamins that support muscle growth while being kidney-friendlyalong with foods where you can find them.


Some squeezing a lemon onto spinach.

1. Vitamin D

  • Why it helps: Supports muscle function and strength by aiding calcium absorption and muscle protein synthesis, both important for building and maintaining muscle.

  • Where to find it: Fatty fish (like salmon and mackerel), fortified dairy, and sunlight exposure. Just be mindful of dairy if you’re watching calcium intake.


2. Vitamin B6

  • Why it helps: Supports protein metabolism and can help with muscle recovery, which is important to building and repairing muscle.

  • Where to find it: Poultry, fish, potatoes, chickpeas, and bananas. Avoid eating excess protein-heavy foods at once to keep it easy on the kidney.


3. Folate (Vitamin B9)

  • Why it helps: Essential for cell division and muscle recovery, making it necessary for repairing muscle tissue post-workout.

  • Where to find it: Leafy greens (like spinach), lentils, beans, and citrus fruits. These are nutrient-dense but gentle on the kidney.


4. Vitamin C

  • Why it helps: Supports collagen production, which is key for strong connective tissue, while also helping muscle repair and protecting against oxidative stress.

  • Where to find it: Citrus fruits, strawberries, bell peppers, and broccoli. Get your Vitamin C from whole foods rather than high-dose supplements, which can strain the kidney.


5. Vitamin E

  • Why it helps: Powerful antioxidant that helps reduce oxidative stress and inflammation, helping recovery after intense workouts.

  • Where to find it: Nuts (like almonds and hazelnuts), seeds (sunflower seeds), spinach, and avocados. Enjoy in moderation, as these are kidney-friendly sources.


6. Omega-3s

  • Why it helps: Help reduce inflammation, which can benefit both muscle recovery and kidney function.

  • Where to find it: Best sources are fatty fish (salmon, mackerel), flaxseeds, and walnuts.


7. Magnesium

  • Why it helps: Supports muscle function and recovery, and it’s necessary for various kidney functions.

  • Where to find it: Get it from nuts, seeds, whole grains, and leafy greens.


Pro tip: Before adding any supplements or making major diet changes, check in with your healthcare provider to make sure they’re kidney-friendly and align with your fitness goals. Remember, recovery is just as important as the workout itself—get plenty of rest and fuel up with nutrient-dense foods to maximize results.


By staying mindful of these nutrients and prioritizing kidney health, you can build muscle effectively while supporting your body’s unique needs every step of the way.

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