Zwieback
Per 100 g, Zwieback provides 426 calories, 74.2 g carbohydrate, 10.1 g protein and 2.5 g fibre.
= 426 kcal
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426kcal 21% RI Reference IntakeEU/UK adult daily energy reference of 2,000 kcal used on packaged-food nutrition labels (Reg. 1169/2011). Switch to the US toggle for FDA Daily Values.
26%Nutrient scoreNutrient ScoreThe share of this food's 27 rated nutrients that score well for its calories, a good source of beneficial nutrients while staying low in saturated fat, sodium and added sugars.27 available of 33 total nutrients with a Daily Value27of33
Protein10.1g10% kcal
Carbs74.2g70% kcal
Fat9.7g21% kcal
Fiber 2.5g
Full nutrient breakdown
Reference
Proximates
- Protein ProteinBuilds and repairs tissue, drives enzymes and hormones. Made up of amino acids, nine of which the body can't make itself.UK adult RI: 50 g/day10.1g10.1g20%
- Fat FatAll fats combined: saturated, monounsaturated, polyunsaturated, and trans. Carries fat-soluble vitamins (A, D, E, K) and contributes 9 kcal per gram.UK adult RI: 70 g/day9.70g9.70g14%
- Carbohydrate CarbohydrateAll carbohydrate combined: sugars, starches, and fiber. Calculated by subtracting water + protein + fat + ash from the food's total mass, hence "by difference".UK adult RI: 260 g/day74.2g74.2g29%
- Fiber FiberPlant carbohydrate the body can't digest. Feeds gut bacteria, slows sugar absorption, and supports regular digestion. UK adults: target 30 g/day.UK adult RI: 30 g/day2.50g2.50g8%
Carbohydrates
- Sugars SugarsNaturally-occurring + added sugars combined (mono- and disaccharides).UK adult RI: 90 g/day12.5g12.5g14%
Fats and Fatty Acids
Sterols
Protein and Amino Acids
Vitamins
- Vitamin C Vitamin CWater-soluble antioxidant + cofactor in collagen synthesis. Lost easily in cooking water and air exposure.UK adult RI: 80 mg/day5.30mg5.30mg7%
- Vitamin B1 (thiamin) Vitamin B1 (thiamin)Water-soluble B-vitamin for carbohydrate metabolism and nerve function. Whole grains, pork, and legumes are good sources.UK adult RI: 1.1 mg/day0.21mg0.21mg19%
- Vitamin B2 (riboflavin) Vitamin B2 (riboflavin)Water-soluble B-vitamin for energy production, cell growth, and skin health. Dairy, eggs, and lean meat are densest.UK adult RI: 1.4 mg/day0.24mg0.24mg17%
- Vitamin B3 (niacin) Vitamin B3 (niacin)Water-soluble B-vitamin for energy metabolism. The body can also make some niacin from the amino acid tryptophan.UK adult RI: 16 mg/day1.32mg1.32mg8%
- Vitamin B5 (pantothenic acid) Vitamin B5 (pantothenic acid)Water-soluble B-vitamin involved in coenzyme A, essential for energy metabolism and the synthesis of hormones, cholesterol, and red blood cells.UK adult RI: 6 mg/day0.54mg0.54mg9%
- Vitamin B6 Vitamin B6Water-soluble B-vitamin for amino acid metabolism and neurotransmitter synthesis.UK adult RI: 1.4 mg/day0.08mg0.08mg6%
- Folate FolateWater-soluble B-vitamin essential for DNA synthesis and cell division. Critical pre-conception and in early pregnancy to prevent neural tube defects.UK adult RI: 200 µg/day87.0µg87.0µg44%
- Vitamin B12 Vitamin B12Water-soluble B-vitamin essential for red blood cell formation and the nervous system. Only found naturally in animal foods, vegans need fortified foods or supplements.UK adult RI: 2.5 µg/day0µg0µg0%
- Vitamin A Vitamin AFat-soluble vitamin for vision, immune function, and skin. Measured in retinol activity equivalents (RAE) so plant and animal sources are comparable.UK adult RI: 800 µg/day16.0µg16.0µg2%
- Vitamin E Vitamin EFat-soluble antioxidant that protects cell membranes from oxidative damage. Nuts, seeds, and vegetable oils are the densest sources.UK adult RI: 12 mg/day2.44mg2.44mg20%
- Vitamin D Vitamin DFat-soluble vitamin essential for calcium absorption and bone health, measured here in International Units (1 µg = 40 IU). The skin also synthesises it from sunlight, so dietary intake matters most over winter.UK adult RI: 200 IU/day0IU0IU0%
- Vitamin D Vitamin DFat-soluble vitamin essential for calcium absorption and bone health. The skin also synthesises it from sunlight, so dietary intake matters most over winter.UK adult RI: 5 µg/day0µg0µg0%
- Vitamin K Vitamin KFat-soluble vitamin essential for blood clotting and bone metabolism. Concentrated in dark leafy greens.UK adult RI: 75 µg/day0.90µg0.90µg1%
Minerals
- Calcium CalciumMajor mineral for bone density, muscle contraction, and nerve signalling.UK adult RI: 800 mg/day20.0mg20.0mg3%
- Iron IronCarries oxygen in haemoglobin. Plant (non-heme) iron absorbs less efficiently than meat (heme) iron, pair with vitamin C to boost absorption.UK adult RI: 14 mg/day0.60mg0.60mg4%
- Magnesium MagnesiumCofactor in 300+ enzyme reactions, energy metabolism, muscle relaxation, blood pressure regulation.UK adult RI: 375 mg/day14.0mg14.0mg4%
- Phosphorus PhosphorusMajor mineral for bones, energy storage (ATP), and cell membranes. Widespread in protein-rich foods.UK adult RI: 700 mg/day55.0mg55.0mg8%
- Potassium PotassiumElectrolyte mineral that counters sodium's effect on blood pressure. Concentrated in fruit, vegetables, beans, and dairy.UK adult RI: 2,000 mg/day305mg305mg15%
- Sodium SodiumMineral mostly consumed as salt (sodium chloride). Excess raises blood pressure in salt-sensitive people.UK adult RI: 2,400 mg/day227mg227mg9%
- Zinc ZincTrace mineral for immune function, wound healing, and sense of taste. Best absorbed from animal foods; phytates in grains reduce uptake.UK adult RI: 10 mg/day0.54mg0.54mg5%
- Copper CopperTrace mineral involved in iron metabolism and connective tissue.UK adult RI: 1 mg/day0.14mg0.14mg14%
- Selenium SeleniumTrace mineral that supports thyroid hormone metabolism and antioxidant defence. Brazil nuts are the densest source.UK adult RI: 55 µg/day28.7µg28.7µg52%
- Fluoride FluorideTrace mineral that strengthens tooth enamel against decay. Most dietary intake comes from fluoridated water and tea.UK adult RI: 3.5 µg/day0.10µg0.10µg3%
Other
Zwieback: key facts
- How many calories are in Zwieback?
- Zwieback has 426 calories per 100 g.
- How much protein is in Zwieback?
- Zwieback provides 10.1 g of protein per 100 g.
- How many carbs are in Zwieback?
- Zwieback contains 74.2 g of carbohydrate per 100 g, including 2.5 g of fibre.
- How much fat is in Zwieback?
- Zwieback has 9.7 g of fat per 100 g.
Values shown for the selected serving and per 100 g. % RI follows the UK / EU Reference Intakes (Reg. 1169/2011) for adults and children 4 + years. Reference only, not medical or dietary advice (Terms & Conditions §3).