Calcium Tofu & Broccoli Sesame Stir-Fry
A quick sesame stir-fry of golden calcium-set tofu, broccoli, and baby bok choy in a light soy-ginger sauce, built to pack plant calcium, vitamin K, and protein into one bone-friendly dinner.

A fast, satisfying weeknight stir-fry that stacks three of the best plant sources of calcium onto one plate. The tofu turns golden and crisp, the greens stay bright, and a glossy sesame-soy sauce ties it all together.
Why it helps
Bone strength depends on more than calcium alone. Calcium-set tofu (made with calcium sulfate) delivers well-absorbed plant calcium plus the protein that forms bone's collagen scaffold, while broccoli and low-oxalate bok choy add vitamin K1 and their own easily absorbed calcium, and sesame seeds contribute a little extra calcium and magnesium. Food supplies the raw materials bones need to stay strong; it supports, but does not replace, treatment for osteoporosis.
Ingredients
- 14 oz block calcium-set firm tofu (look for "calcium sulfate" on the label), drained
- 1 Tbsp cornstarch
- 1 Tbsp neutral oil (avocado or canola)
- 4 cups broccoli florets (about 1 medium head)
- 6 oz baby bok choy (about 2-3 small heads), halved lengthwise
- 3 cloves garlic, minced
- 1 Tbsp fresh ginger, grated
- 1 Tbsp toasted sesame oil
- 3 Tbsp low-sodium soy sauce or tamari
- 1 Tbsp rice vinegar
- 1 tsp maple syrup or honey
- 1/2 cup water or low-sodium vegetable broth
- 2 Tbsp toasted sesame seeds
- 2 scallions, thinly sliced
- 1/4 tsp red pepper flakes (optional)
Instructions
- 1Wrap the tofu in a clean towel and set a heavy pan on top for 15 minutes to press out water. Cut into 1-inch cubes and toss gently with the cornstarch until lightly coated.
- 2Whisk the sauce: in a small bowl combine the soy sauce, rice vinegar, maple syrup, and water or broth. Set aside.
- 3Heat the neutral oil in a large nonstick skillet or wok over medium-high. Add the tofu in a single layer and cook undisturbed 3-4 minutes per side, turning once or twice, until golden on several faces (about 10 minutes total). Transfer to a plate.
- 4Add the sesame oil, garlic, ginger, and red pepper flakes to the same pan; cook 30 seconds until fragrant. Add the broccoli plus 2 tablespoons water, cover, and steam 3 minutes until bright green.
- 5Stir in the bok choy and cook 2 minutes more, until the stalks are crisp-tender.
- 6Return the tofu to the pan and pour in the sauce. Toss 1-2 minutes until the sauce thickens and glosses everything.
- 7Off the heat, sprinkle with toasted sesame seeds and scallions. Serve on its own or over brown rice.
Nutrition (per serving, approximate)
Tips & swaps
- Look for "calcium sulfate" in the tofu's ingredient list, that is what makes it a standout calcium source; tofu set with nigari (magnesium chloride) has far less.
- Pat the tofu very dry and avoid crowding the pan, moisture is the enemy of a crisp, golden sear.
- Swap kale or collard greens for the bok choy, and use tamari instead of soy sauce to keep it gluten-free.
- Leftovers keep 3-4 days in the fridge; add a splash of water when reheating to loosen the sauce.