Broccoli Sprouts

Overview

Broccoli sprouts are concentrated sources of glucoraphanin and active myrosinase, delivering higher sulforaphane potential per gram than mature broccoli when handled appropriately [1]. They are used as a functional crucifer garnish or short-grown sprout food.

Within the BRAIN Diet framework, sprouts are a sulforaphane-focused ingredient with meaningful food-safety considerations (fresh sprout handling); typical portions are small [1].

Key Nutritional Highlights

• Among the densest practical glucoraphanin sources for sulforaphane delivery [1].
• Requires active myrosinase (fresh chewing or careful preparation) for ITC conversion [1].
• Typical servings are tablespoons, not 100 g portions.
• Fresh sprout food-safety handling matters for immunocompromised individuals.

Food Context

Synergies

• Fits well within a broader cruciferous rotation including broccoli, cabbage, kale, cauliflower, and radish
• Works best in minimally heated meals where active myrosinase is preserved
• Pairs well with salads, bowls, eggs, wraps, sandwiches, and fermented-food meals where a small amount adds a high-value phytochemical signal

Sourcing

• Buy very fresh refrigerated sprouts from reputable suppliers, or use seeds specifically labelled for sprouting
• Freshness matters more than for mature broccoli because sprout quality and food-safety margin decline quickly
• If growing at home, use sprouting-specific seeds, clean equipment carefully, and refrigerate promptly once the sprouts are ready

Preparation

• Best eaten raw or only very lightly heated if the goal is sulforaphane formation
• Chopping and chewing help activate myrosinase, which converts glucoraphanin into sulforaphane
• Prolonged heat reduces myrosinase activity and lowers conversion potential
• Because raw sprouts carry higher microbial risk than mature broccoli, higher-risk groups should avoid raw sprouts or cook them thoroughly

Safety

• Raw sprouts are a higher-risk food because warm, humid sprouting conditions also favour growth of pathogens such as Salmonella, E. coli, and Listeria
• Pregnant people, immunocompromised people, older adults, and very young children should avoid raw sprouts
• Rinsing helps with surface debris, but does not reliably eliminate pathogen risk if seeds were contaminated upstream

Recipes

no recipes found

Nutrient Tables (per 100 g)

Core nutrients

Nutrient	Amount per 100 g	% RDA per 100 g
Energy	10 kcal	—
Protein	2.2 g	—
Total fat	0 g	—
Carbohydrates	0.4 g	—
Fibre	0 g	—

Key micronutrients

Nutrient	Amount per 100 g	% RDA per 100 g
Iron	0.6 mg	3.3%
Zinc	0.5 mg	4.5%
Magnesium	29 mg	6.9%
Calcium	120 mg	12%
Potassium	220 mg	6.5%
Folate	37 µg	9.3%
Vitamin B6	0.1 mg	8.2%

Functional metrics

Metric	Score	Notes
Glucoraphanin / sulforaphane potential	Much higher than mature broccoli	Broccoli sprouts are mainly prized for glucoraphanin density and downstream sulforaphane formation rather than for calories or macros.

Note: Functional-metric values depend strongly on assay method, processing, and product formulation. Use these as contextual metrics, not strict like-for-like nutrient equivalents.

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): Norwegian Food Composition Table, Broccoli sprouts, raw, Manual reference, per 100 g edible portion, last checked 2026-05-26

Substances

Substances in this food: editorial (Overview / literature) plus analytical (nutrition table).

12 substances in this food

Ca²⁺

Calcium

Bone health; neurotransmission; interacts with vitamin D and K2

Fe²⁺

Iron

Oxygen transport; dopamine synthesis (tyrosine hydroxylase cofactor)

Mg²⁺

Magnesium

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

K⁺

Potassium

Electrolyte for nerve transmission, muscle function, and blood pressure regulation

Vitamin A (Retinoids; β-Carotene precursor)

Neurodevelopment; immune regulation; antioxidant via carotenoids

Vitamin B1 (Thiamine)

Mitochondrial glucose metabolism; ATP synthesis; rapid turnover in CNS

Vitamin B2 (Riboflavin)

FMN/FAD coenzymes; redox balance; supports methylation via MTHFR

Vitamin B6 (Pyridoxine → PLP)

PLP cofactor for neurotransmitter synthesis; relies on brain PDXK activation

Vitamin B9 (Folate; 5-MTHF)

One-carbon metabolism; methylation; homocysteine recycling

Vitamin C (Ascorbate)

Antioxidant; supports iron absorption; neuronal SVCT2 transport

Vitamin E (Tocopherols/Tocotrienols)

Lipid-phase antioxidant; protects PUFA (DHA) in membranes

Zn²⁺

Zinc

Cofactor in neurotransmission and antioxidant enzymes; dopamine modulation

References

[1] Among the densest practical glucoraphanin sources for sulforaphane delivery. Houghton & Fassett 2016. Sulforaphane and Other Nutrigenomic Nrf2 Activators: Can the Clinician’s Expectation Be Matched by the Reality?