LowCarbCheck.org

Tofu

Tofu
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Carb Check

Carbs
2g
Carbs
Fiber
0.3g
Fiber
Net Carbs
2g
Net Carbs
Carbs per Portion
2g
Carbs per Portion
Glycemic Index
15
Glycemic Index
Glycemic Load
0.3
Glycemic Load

Legend

Low Impact
Moderate Impact
High Impact

Color-coded system for nutritional impact: Use for food choices, especially for diabetes or low-carb diets.

Diet Check

Low Carb
Yes
Keto
Yes
Carnivore
No
Paleo
No
Slow Carb
Yes
Vegan
Yes
Vegetarian
Yes
Low FODMAP
Yes

pH Check

Tofu
Neutral

Nutrient Distribution per 100g

Tofu

  • Water
    84.0g
  • Fiber
    0.3g
  • Carbs
    2.0g
  • Fat
    5.0g
  • Protein
    8.0g

Advanced Nutrient Analysis

Histamine
Very High
Purine
Low
Tyramine
Low
FODMAP
Low
Oxalate
Low
Goitrogen
High
Sulfite
Not present
Nitrate
Not present
Antioxidants
Moderate

Legend

Not present
Low
Moderate
High
Very High

For the antioxidant level, the scale is flipped. 1 (green) is a high antioxidant level, and 5 (purple) is a low antioxidant level.

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Nutrition Quiz

Compare nutrients10 quick questions

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Tofu is genuinely low in carbohydrates: 2 g per 100 g, which comes to about 2 g of net carbs — the figure that actually counts on keto. It also provides 0.3 g of fiber per 100 g. A 100 g serving delivers 84 kcal, 8 g of protein and 5 g of fat, adding real substance to a meal for very little carbohydrate cost. It is also a useful source of Magnesium: a 100 g serving covers about 27% of the daily reference intake (100 mg per 100 g).

  • Net carbs: 2 g
  • Fiber: 0.3 g
  • Glycemic index (GI): 15 (low)
  • Glycemic load (GL): 0.3
  • Sodium: 4 mg
  • Magnesium: 100
  • Iron: 3.7
ketoYes

Tofu is keto-friendly. At 2 g of carbohydrates per 100 g — about 2 g of net carbs — it slots easily into a daily keto budget. A standard 100 g serving adds just 2 g of carbs, leaving plenty of room for the rest of the day. With 8 g of protein and 5 g of fat per 100 g, it is a dependable everyday choice on keto or low-carb, whether as a side, a snack, or part of a main meal.

Tofu has a glycemic index of 15 (GI: low). Its glycemic load of 0.3 reflects the real-world impact of a 100 g serving (2 g of carbs per 100 g, about 2 g net). Lower-GI foods raise blood sugar gently, higher-GI foods more sharply — so pairing the carbs with protein, fat, or fiber helps steady the response.

Vitamin Check

Vitamin A (Retinol)
0 µg
0% RDA
Vitamin C
0.001 mg
0% RDA
Vitamin D
0 µg
0% RDA
Vitamin E (Tocopherol)
1 mg
8% RDA
Vitamin B1 (Thiamine)
0.08 mg
7% RDA
Vitamin B2 (Riboflavin)
0.05 mg
4% RDA
Vitamin B6 (Pyridoxine)
0.05 mg
4% RDA
Vitamin B12 (Cobalamin)
0 µg
0% RDA
Beta-Carotene
2 µg
0% RDA

RDA percentages are based on EU reference values for adults (19-50 years) per 100g serving.

Mineral Check

Sodium
4 mg
0% RDA
Calcium
90 mg
11% RDA
Iron
3.7 mg
26% RDA
Potassium
95 mg
5% RDA
Magnesium
100 mg
27% RDA
Phosphorus
100 mg
14% RDA
Zinc
0.9 mg
9% RDA

RDA percentages are based on EU reference values for adults (19-50 years) per 100g serving.

Allergen Check

Fructose
Not present
Lactose
Not present
Gluten
Not present
Soy
High
Shellfish
Not present
Nightshade

Legend

Not present
Traces
Low
Moderate
High

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