Mustard greens – RootCauseAI

Mustard greens, per 100 g: 27 kcal, 2.9 g protein, 4.7 g carbohydrate, 3.2 g fibre, 0.4 g fat. Figures are the USDA reference values for “Mustard greens, raw”.

At 100 g it reaches the EU threshold to be called a source of vitamin k, vitamin c, potassium, vitamin a. The table below gives the full composition, and every claim listed underneath is quoted from the EU register rather than written by us.

High protein42% of the energy in this food is proteinSource of fibre3.2 g fibre per 100 gFat-freeUnder 0.5 g fat per 100 gLow sugars1.3 g sugars per 100 gVery low sodium20 mg sodium per 100 gLow energy27 kcal per 100 g

Nutritional value per 100 g

Nutrient	Per 100 g	% NRV
Energy and macronutrients
Energy	27 kcal
Protein	2.86 g
Fat	0.42 g
of which saturates	0.01 g
of which monounsaturates	0.092 g
of which polyunsaturates	0.038 g
Carbohydrate	4.67 g
of which sugars	1.32 g
Fibre	3.2 g
Water	90.7 g
Cholesterol	0 mg
Minerals
Calcium	115 mg	14.4%
Iron	1.64 mg	11.7%
Magnesium	32 mg	8.53%
Phosphorus	58 mg	8.29%
Potassium	384 mg	19.2%
Sodium	20 mg
Zinc	0.25 mg	2.5%
Copper	0.165 mg	16.5%
Selenium	0.9 µg	1.64%
Vitamins
Vitamin A	151 µg	18.9%
Vitamin D	0 µg
Vitamin E	2.01 mg	16.8%
Vitamin K	258 µg	343%
Vitamin C	70 mg	87.5%
Thiamine (B1)	0.08 mg	7.27%
Riboflavin (B2)	0.11 mg	7.86%
Niacin (B3)	0.8 mg	5%
Pantothenic acid (B5)	0.21 mg	3.5%
Vitamin B6	0.18 mg	12.9%
Folate	12 µg	6%
Vitamin B12	0 µg

% NRV is the nutrient reference value for an average adult, as set in Annex XIII of Regulation (EU) 1169/2011. A blank cell means no reference value is defined for that nutrient, not that it is unimportant.

What this food is a source of

This food reaches the legal threshold for the claims below. The wording is quoted exactly from the EU register of authorised health claims — we have not written or paraphrased any of it.

High in Vitamin K343% NRV per 100 g

Vitamin K contributes to normal blood clotting
Vitamin K contributes to the maintenance of normal bones

High in Vitamin C87.5% NRV per 100 g

Vitamin C contributes to the normal function of the immune system
Vitamin C contributes to normal collagen formation for the normal function of blood vessels
Vitamin C increases iron absorption

Source of Potassium19.2% NRV per 100 g

Potassium contributes to normal muscle function
Potassium contributes to the maintenance of normal blood pressure

Source of Vitamin A18.9% NRV per 100 g

Vitamin A contributes to the maintenance of normal vision
Vitamin A contributes to the normal function of the immune system
Vitamin A contributes to the maintenance of normal skin

Source of Vitamin E16.8% NRV per 100 g

Vitamin E contributes to the protection of cells from oxidative stress

Source of Copper16.5% NRV per 100 g

Copper contributes to normal energy-yielding metabolism
Copper contributes to the protection of cells from oxidative stress

High protein42.4% of energy from protein

Protein contributes to a growth in muscle mass
Protein contributes to the maintenance of muscle mass

Where these numbers come from. Composition data: USDA FoodData Central, SR Legacy release, entry Mustard greens, raw (FDC ID 169256). Values are per 100 g of the food as described, and real foods vary with variety, season, soil, storage and cooking. Claim thresholds: Regulation (EC) 1924/2006. Claim wording: Regulation (EU) 432/2012.

This is reference information, not personal advice. Nutrient content is one small part of a diet, and no single food prevents or treats disease. If you are pregnant, managing a medical condition, or taking medication — particularly anticoagulants, thyroid medication or immunosuppressants, where diet can interact — ask your doctor or pharmacist before making changes.