Tofu (Firm)

legumes

GI: 15 (Low)
Nutrition Facts
Serving Size: 100g

Calories76

Total Fat4.8g

Saturated Fat0.7g

Total Carbs1.9g

Fiber0.3g

Sugars0.7g

Protein8.1g

Macro Breakdown

Protein8.1g (39%)
Carbs1.9g (9%)
Fat4.8g (52%)

Glycemic Impact

Glycemic Index15 (Low)
Glycemic Load1
Insulin Index30

Health Scores (0-10)

8.5
Metabolic
7.0
Inflammation
6.5
Hormonal
5.0
Gut Health
6.0
Skin Health
5.5
Brain Health
7.5
Bone Health
5.5
Sleep
7.0
Exercise
7.0
Longevity
5.5
Detox
6.0
Immunity
7.5
Pral
7.5
Satiety
8.0
Nutrient Density
6.0
Bioavailability
7.0
Electrolyte
5.5
Methylation

Complete Nutrient Profile

NutrientAmount / 100g% Daily Value
Energy Kcal76.0 kcal4% DV
Protein8.1 g16% DV
Total Fat4.8 g6% DV
Carbohydrate1.9 g1% DV
Calcium350.0 mg27% DV
Iron5.4 mg30% DV
Magnesium30.0 mg7% DV
Phosphorus97.0 mg8% DV
Potassium121.0 mg3% DV
Zinc0.8 mg7% DV
Selenium8.9 µg16% DV

Amino Acid Profile

Amino AcidAmount / 100g
Tryptophan0.120g
Threonine0.324g
Isoleucine0.434g
Leucine0.713g
Lysine0.427g
Methionine0.103g
Phenylalanine0.445g
Valine0.445g
Histidine0.221g

Compare Tofu (Firm) With...

Lentils (Cooked)
116 cal
Black Beans (Cooked)
132 cal
Chickpeas (Cooked)
139 cal

Health Condition Relevance

🏥

Hypothyroid

selenium, zinc, iron. Thyroid hormone synthesis requires iodine + tyrosine for T4 structure, selenium for T4→T3 conversion.

🩸

Anemia

iron, copper. Iron-deficiency is the most common nutritional deficiency. Vitamin C increases non-heme iron absorpt.

🏃

Athletic Performance

protein, iron. Protein for MPS. Iron for O2 transport. B12 for RBC production. Nitrates→NO→vasodilation. Electrolyt.

Hormonal & Metabolic Impact

🧬 Selenium → T3 (active thyroid), Testosterone (16% DV)

Required for T4→T3 conversion (deiodinase enzyme). Selenoproteins protect Leydig cells from oxidative damage.

Anti-Nutrients & How to Reduce Them

⚠️ Phytates (reduce zinc, iron, calcium absorption 20-60%)

⚠️ Lectins (can irritate gut lining — destroyed by proper cooking)

⚠️ Protease inhibitors (reduce protein digestion — destroyed by cooking)

⚠️ Tannins (reduce iron absorption)

Mitigation: Soaking 12-24h reduces phytates 30-50%. Cooking destroys lectins and protease inhibitors. Fermentation (tempeh, miso) reduces all anti-nutrients. Sprouting increases nutrient bioavailability.

Benefits (fiber, protein, minerals) far outweigh anti-nutrient concerns for most people.

Frequently Asked Questions

Does Tofu (Firm) affect hormones?
Yes — Tofu (Firm) is rich in selenium (16% DV), which Required for T4→T3 conversion (deiodinase enzyme). Selenoproteins protect Leydig cells from oxidative damage.. selenium supports T3 (active thyroid) and Testosterone production.
Does Tofu (Firm) contain anti-nutrients?
Phytates (reduce zinc, iron, calcium absorption 20-60%). Lectins (can irritate gut lining — destroyed by proper cooking). Soaking 12-24h reduces phytates 30-50%. Cooking destroys lectins and protease inhibitors. Fermentation (tempeh, miso) reduces all anti-nutrients. Sprouting increases nutrient bioavailability. Benefits (fiber, protein, minerals) far outweigh anti-nutrient concerns for most people.