Wheat

Overview

Wheat, especially in less-refined forms, provides complex carbohydrates, fibre, and minerals such as magnesium, iron, and zinc [2]. It can contribute useful B-vitamin intake and remains a widely used staple that can support dietary energy needs in many meal patterns.

From a protein perspective, wheat is best understood as a grain protein that is typically lysine-limited rather than complete on its own [1,2]. In the BRAIN Diet framework, wheat-based foods are most useful when paired with legumes across meals to improve essential amino-acid balance while maintaining practical dietary variety [1,2].

Key Nutritional Highlights

• Widely consumed staple grain with meaningful B-vitamin and mineral contribution when less refined.
• Nutritional profile changes markedly with refinement level and product type.
• Grain protein is lysine-limited, so amino-acid balance improves when paired with legumes [1,2].
• Food-matrix effects differ between whole-kernel/flour products and highly processed wheat foods.

Food Context

Synergies

• Pair wheat with legumes (e.g. lentils, chickpeas, beans) to improve essential amino-acid balance at meal/day level [1,2].

Sourcing

• Choose less-refined and whole-grain wheat products where tolerated, as they generally retain more fibre and micronutrients than highly refined forms.

Preparation

• Use minimally processed forms and avoid excessive refinement to preserve fibre and micronutrient density.

Essential Amino Acid Profile

Wheat provides a useful plant protein source but is not a complete protein.

Notable amino acids:

• Methionine (relatively higher than in legumes)

Limiting amino acids:

• Lysine (typical of grains)

Protein pairing strategy:

Grains such as wheat are relatively higher in methionine but lysine-limited. Combining with legumes (e.g. lentils, chickpeas) creates a more balanced essential amino acid profile.

Recipes

no recipes found

Nutrient Tables (per 100 g)

Core nutrients

Nutrient	Amount per 100 g	% RDA per 100 g
Energy	327 kcal	—
Protein	12.6 g	—
Total fat	1.5 g	—
Saturated fat	0.3 g	—
Carbohydrates	71.2 g	—
Sugars	0.4 g	—
Fibre	12.2 g	—

Key vitamins and minerals

Nutrient	Amount per 100 g	% RDA per 100 g
Iron	3.2 mg	17.7%
Zinc	2.7 mg	24.1%
Magnesium	126 mg	30%

Reference intakes: US Dietary Reference Intakes for adults (19–50 years; using the higher of male/female values where they differ).

Data provenance (core / micronutrient panel): USDA FoodData Central, Wheat, hard red winter, FDC ID 168890, SR Legacy bulk (April 2018), per 100 g edible portion, last checked 2026-08-15

Substances

Substances admitted through a supported nutrition-table row. Not every table row appears here. Cards are not BRS mappings.

3 substances in this food

Fe²⁺

Iron

Oxygen transport; dopamine synthesis (tyrosine hydroxylase cofactor)

Mg²⁺

Magnesium

Enzymatic cofactor (>300 reactions); neurotransmitters; mitochondria; redox balance

Zn²⁺

Zinc

Cofactor in neurotransmission and antioxidant enzymes; dopamine modulation

References

[1] Report recommending the Digestible Indispensable Amino Acid Score (DIAAS) as the preferred method for evaluating dietary protein quality, replacing PDCAAS, and detailing methodology and implications for human nutrition. FAO 2013. Protein quality evaluation framework (DIAAS)

[2] Wheat, especially in less-refined forms, provides complex carbohydrates, fibre, and minerals such as magnesium, iron, and zinc. Mariotti & Gardner 2019. Plant-protein adequacy, limiting amino acids, and practical complementarity