Nuts & Seeds Tree Nuts Phytochemical data available 🇺🇸 USDA FDC 2025
✦ Exceptionally high polyphenols ✦ Gamma-tocopherol vitamin E ✦ Manganese and copper ✦ Monounsaturated fat

Raw pecan halves are a rich source of monounsaturated and polyunsaturated fat, manganese, copper, thiamin, and zinc. They contain more antioxidant polyphenols than almost any other tree nut, including ellagic acid and proanthocyanidins. Gamma-tocopherol (a form of vitamin E) is particularly high in pecans, linked in research to anti-inflammatory effects.

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Preparation note

Store in the fridge or freezer; pecans are high in polyunsaturated fat and go rancid quickly at room temperature. Toast at 160°C for 8-10 minutes for a deeper, butterscotch-like flavour.

Sources: CoFID 2021

Macronutrients per 100g

3,139
kJ
Energy
9.96
g
Protein
6.91
g
Carbs
4.06
g
Fibre
73.3
g
Fat
6.47
g
Saturates
0.00
g
Salt

Vitamins & Minerals

Nutrient Per 100g % Daily Value* Level
Potassium 360 mg 18%
Phosphorus 253 mg 36%
Magnesium 103 mg 27%
Calcium 54.8 mg 7%
Molybdenum 15.6 µg 31%
Vitamin K 4.10 µg 3%
Zinc 3.93 mg 39%
Iron 2.37 mg 17%
Manganese 2.28 mg 114%
Niacin (B3) 0.946 mg 6%
Copper 0.907 mg 91%
Thiamin (B1) 0.548 mg 50%
Vitamin B6 0.171 mg 12%
Monounsaturated fat 39.3 g
Polyunsaturated fat (PUFA) 22.9 g
Glutamic acid 2.50 g
Arginine 1.36 g
Aspartic acid 0.870 g
Leucine 0.670 g
Proline 0.610 g
Serine 0.540 g
Glycine 0.493 g
Phenylalanine 0.463 g
Alanine 0.438 g
Valine 0.435 g
Isoleucine 0.365 g
Lysine 0.320 g
Tyrosine 0.313 g
Threonine 0.303 g
Histidine 0.263 g
Methionine 0.168 g
Tryptophan 0.115 g
Biotin (Vitamin B7) 22.7 µg 45%

* % Daily Value based on EU Nutrient Reference Values (NRVs). — indicates no EU NRV established.

Phytochemicals

Why are some phytochemicals missing? Nutriofia tracks over 50 bioactive plant compounds — including allicin, betanin, glucosinolates, lignans, and polyphenols — but comprehensive measurement data simply doesn't exist yet for most foods. Unlike vitamins and minerals, phytochemical analysis is still an active area of food science research. When a compound doesn't appear here, it means no published measurement exists for this food, not that the food lacks it. We update our database as new data becomes available.
Primary data source for this entry: USDA FoodData Central (FDC 2025). Values adjusted to UK measurement conventions before import: fibre converted from AOAC to NSP (×0.7); carbohydrate reported as available carbs (fibre excluded). Source record tag: USDA FDC 2025. Phytochemical data: USDA Flavonoid Database Release 3.3 (2018) and published analytical literature as indicated on each compound. All values are per 100g fresh weight unless stated. % Daily Values based on EU Nutrient Reference Values (NRVs) per Regulation (EU) No 1169/2011. Nutriofia is a research and information resource — nothing on this page constitutes medical advice. Page generated from Nutriofia database · Argarth Collective Ltd · Company No. 16864945.