Skip to main content
Tofu — image 1 of 1
Legume · Soy Products

Tofu

90/ 100
Also known as: bean curd, firm tofu, silken tofu

Tofu is a plant-based protein powerhouse made from soybeans, containing all nine essential amino acids and rich in iron, calcium, and polyunsaturated fats for cardiovascular and bone health.

Variants (4)

Nutrition · per ~90 g serving · ≈ ½ cup cooked

🔥 Calories
130/ 2000 kcal day
🥩Protein15.6 g31% DV
🍞Carbs2.5 g<1% DV
🥑Fat7.8 g10% DV
🌿Fiber2.1 g7% DV
0g net carbs · carbs − fiber
Minerals
  • Calcium614.7 mg47% DV
  • Selenium15.7 mcg28% DV
  • Phosphorus171.0 mg14% DV
  • Iron2.4 mg14% DV
  • Zinc1.4 mg13% DV
  • Magnesium52.2 mg12% DV
BioactivesEstimated
  • Isoflavones~72 mg
  • Polyphenols~135 mg
Estimated typical amounts — derived from this food's profile, not measured for this item. Real bioactive content varies widely by variety, ripeness, storage and preparation; use as a rough guide only.
Source: USDA · 174290

Score · 90/100

Nutrient Density35.0 / 35

Vitamins & minerals packed in relative to calories — the single biggest driver of the score.

Protein Quality12.0 / 15

How much protein it delivers, by absolute grams and per calorie.

Fiber Content10.0 / 10

Dietary fiber for gut health, satiety and steadier blood sugar.

Healthy Fats6.0 / 10

Fat quality — unsaturated vs saturated, and trans-fat free.

Bioactives11.0 / 15

Polyphenols, flavonoids and other beneficial plant compounds for this food group.

Glycemic Impact10.0 / 10

Low sugar with a high fiber-to-carb ratio scores best — gentler on blood sugar.

2.0 anti-nutrient penalty
Top Nutrients
  • Manganese160% DV
  • Copper131% DV
  • Selenium99% DV
  • Iron54% DV
  • Calcium53% DV

Overview

Tofu originated in China over 2,000 years ago and has become a cornerstone of Asian cuisine and Western plant-based diets. Made by coagulating soy milk and pressing the curds into blocks, tofu offers a complete protein profile with 52g per 100g—exceptional for a plant source. Its nutritional composition supports longevity through multiple pathways: high polyunsaturated fat content (17g per 100g) promotes cardiovascular health and reduces inflammation; bioavailable iron (9.73mg) and calcium (364mg) support blood oxygenation and bone density; and folate (92mcg) facilitates DNA repair and methylation cycles critical for aging. Tofu's isoflavones—genistein and daidzein—are phytoestrogens with emerging evidence for bone preservation, particularly relevant for postmenopausal women. The relatively low carbohydrate content (10g) with significant fiber makes tofu compatible with various dietary patterns. Its neutral flavor profile and versatility across cuisines facilitate consistent consumption, critical for realizing sustained health benefits. The minimal processing of traditional tofu (versus highly processed meat alternatives) preserves nutrient bioavailability.

Health Benefits (5)

  • Complete plant-based protein synthesis and muscle maintenance
    strong
    Tofu contains all nine essential amino acids in sufficient quantities, enabling de novo protein synthesis and muscle fiber preservation essential for maintaining sarcopenia-resistant muscle mass with aging
  • Cardiovascular disease risk reduction
    strong
    High polyunsaturated fat content, particularly linoleic acid, reduces LDL cholesterol and improves the LDL:HDL ratio; isoflavones support endothelial function and blood pressure regulation
  • Bone density preservation and fracture risk reduction
    moderate
    High bioavailable calcium (364mg/100g) and magnesium support mineralization; isoflavones (genistein, daidzein) may enhance osteoblast activity and reduce osteoclast-mediated bone resorption
  • Iron bioavailability and hemoglobin synthesis
    moderate
    Tofu provides non-heme iron (9.73mg/100g) with enhanced absorption when paired with vitamin C sources; supports oxygen transport and mitochondrial function critical for cellular energy
  • DNA methylation and cellular repair pathways
    moderate
    Folate (92mcg/100g) serves as a methyl donor in one-carbon metabolism, supporting epigenetic stability and reducing homocysteine levels associated with cardiovascular and cognitive aging

Food Pairings

  • ·Pair with bell peppers or citrus because vitamin C dramatically increases non-heme iron absorption from tofu by reducing ferric to ferrous iron
  • ·Pair with leafy greens (spinach, kale) because both provide complementary micronutrients (magnesium, folate) and the fat in tofu enhances fat-soluble vitamin absorption from greens
  • ·Pair with turmeric and black pepper because curcumin's bioavailability is enhanced by tofu's fat content, and piperine further increases curcumin absorption for anti-inflammatory synergy
  • ·Pair with omega-3 rich seeds (flax, chia) because both provide complementary fatty acid profiles—tofu's linoleic acid with seeds' alpha-linolenic acid—supporting comprehensive lipid metabolism

Practical Tips

  • ·Press firm or extra-firm tofu before cooking to remove excess water, which improves texture, allows better browning, and increases nutrient density per serving
  • ·Store opened tofu submerged in fresh water in a sealed container and change water daily; use within 3-5 days to prevent bacterial growth and maintain texture
  • ·Marinate tofu in acidic liquids (citrus, vinegar) before cooking to enhance iron bioavailability and improve flavor absorption due to increased surface area
  • ·Consume tofu with cooked preparations (stir-frying, steaming, baking) rather than exclusively raw to improve protein digestibility and reduce anti-nutritive compounds like phytates

Optimal Timing

🕒
anytime
Best with food

Tofu's complete amino acid profile makes it suitable for any meal; post-workout timing is particularly beneficial for muscle protein synthesis following resistance training, while midday meals provide sustained satiety without disrupting sleep

For fasting protocols, tofu breaks fasts due to protein and fat content; best consumed within 1-2 hours post-strength training when muscle protein synthesis is elevated

Concerns

  • · High saturated fat

Systems supported

body systems this food feeds

Pathways supported

biochemical reactions enabled by this food