Mussels
Overview
Mussels are bivalve shellfish that provide substantial amounts of vitamin B12, iron, zinc, selenium, and long-chain omega-3 fatty acids. Compared with many terrestrial foods, mussels are particularly dense in B12 and bioavailable iron and zinc, nutrients that support red blood cell formation, myelination, and enzymatic antioxidant systems [1]. They also contribute marine omega-3 fatty acids in a different culinary format to finfish, adding trace minerals and beneficial lipids in relatively small portions.
Within the BRAIN Diet framework, mussels serve as a rotational shellfish option that complements other dietary sources of B12 and iron. They are especially useful in dietary patterns where red meat intake is moderated but adequate intake of these micronutrients is still required [1]. As with all shellfish, sourcing and preparation are important—safe harvesting areas, proper storage, and thorough cooking reduce microbiological risk while preserving the nutrient density of the food
Key Nutritional Highlights
- Provides complete, highly digestible protein.
- Commonly contributes selenium, iodine, and vitamin B12, though levels vary by species.
- EPA/DHA content is highly species-dependent; oily fish are usually higher than lean fish or shellfish.
- Often lower in saturated fat than many fatty red-meat patterns when minimally processed.
- Nutritional profile and risk context depend on processing method (fresh vs salted/smoked/cured).
Food Context
Sourcing
- Choose mussels from reputable producers that harvest from monitored waters, with clear labelling on origin and safety testing.
- Farmed mussels generally have a low environmental footprint and can help maintain water quality by filter-feeding, but they should still be sourced from areas with robust biotoxin and contamination surveillance.
Preparation
- Cook mussels thoroughly—for example by steaming until all shells have opened and discarding any that remain closed—to reduce microbiological risk while retaining their nutrient density.
- Serve mussels with vegetable-rich bases such as tomato, garlic, herbs, or leafy greens, and consider pairing with whole grains to build balanced meals that combine shellfish micronutrients with fibre and phytochemicals.
Essential Amino Acid Profile
This food provides a complete essential amino acid profile typical of animal proteins, with high digestibility and bioavailability.
Recipes
1 recipe containing this food
Linguine alle vongole mantecate (Linguine with cockles in a silky emulsified sauce)
Whole-wheat linguine with cockles in a silky emulsified sauce; Italian emulsification technique without cream, supporting taurine, B12, and choline intake.
Nutrient Tables (per 100 g)
Selected food and preparation: Mollusks, mussel, blue, raw. per 100 g edible portion.
Core nutrients
| Nutrient | Amount per 100 g | % reference intake per 100 g |
|---|---|---|
| Energy | 86 kcal | — |
| Protein | 11.9 g | — |
| Total fat | 2.2 g | — |
| Saturated fat | 0.4 g | — |
| Carbohydrates | 3.7 g | — |
Key vitamins and minerals
Vitamins and minerals supplying at least 10% of an adult reference intake per 100 g, derived from the composition panel.
| Nutrient | Amount per 100 g | % reference intake per 100 g |
|---|---|---|
| Iron | 4 mg | 21.9% |
| Zinc | 1.6 mg | 14.5% |
| Phosphorus | 197 mg | 28.1% |
| Manganese | 3.4 mg | 147.8% |
| Selenium | 44.8 µg | 81.5% |
| Copper | 0.1 mg | 10.4% |
| Choline | 65 mg | 11.8% |
| Folate | 42 µg | 10.5% |
| Vitamin B12 | 12 µg | 500% |
| Vitamin B2 | 0.2 mg | 16.2% |
| Vitamin B1 | 0.2 mg | 13.3% |
| Vitamin B3 | 1.6 mg | 10% |
| Vitamin B5 | 0.5 mg | 10% |
Bioactive compounds
Content applies to the food and preparation identified in the source notes.
| Compound / class | Amount per 100 g | Notes |
|---|---|---|
| EPA | 188 mg | — |
| DHA | 253 mg | — |
Substances
8 substances in this food
Vitamin B12 (Cobalamin)
USDA FoodData Central reports vitamin B12 in Mollusks, mussel, blue, raw.
Omega-3 Fatty Acids
USDA FoodData Central reports EPA, DHA, total omega-3 in Mollusks, mussel, blue, raw. This class link does not treat a combined total as EPA, DHA or ALA.
References
[1] They are especially useful in dietary patterns where red meat intake is moderated but adequate intake of these micronutrients is still required. FAO 2013. Dietary protein quality evaluation in human nutrition (DIAAS report)
[2] Current Progress in Lipidomics of Marine Invertebrates (2021)
Indispensable amino-acid composition — source & portion
Mollusks, mussel, blue, cooked, moist heat. USDA FoodData Central 174217; per 100 g edible portion.
| Constituent | g per 100 g |
|---|---|
| histidine | 0.457 |
| isoleucine | 1.036 |
| leucine | 1.676 |
| lysine | 1.779 |
| methionine | 0.537 |
| phenylalanine | 0.853 |
| threonine | 1.025 |
| tryptophan | 0.267 |
| valine | 1.04 |
Protein: 23.8 g per 100 g. Illustrative portion: 3 oz, 85 g (USDA portion record 93960).
USDA database composition, including source-specific analytical or calculated values. No amino-acid-specific digestibility correction; illustrative USDA household portion, not an intake recommendation. Missing values are not treated as zero. Composition-derived class sources keep all nine constituents separate. Every meal need not provide the complete set.
No matching amino-acid-specific ileal digestibility dataset is attached to this profile. The sum is not DIAAS. Existing food-page protein-quality evidence remains separate.
Food composition → admitted dietary relationships
These links join food composition to existing PM admissions. They do not establish that a portion reproduces an intervention, delivers an intact cofactor to tissue, or improves a clinical outcome. Derived supply retains its conversion and delivery limits.
- Indispensable amino-acid supply → BRS1-FM1-PM1 · Type A / direct
Food form & relationship limits
Protein-quality scoring and vegetarian-diet amino-acid coverage do not establish that increasing protein raises brain monoamine synthesis or improves attention or mood. The indispensable set includes phenylalanine; tyrosine is not an indispensable amino acid.
Mollusks, mussel, blue, cooked, moist heat; cooked. Sum of nine constituent measurements, not a synthetic contains edge. Sum of nine amino acids per 100 g of the stated edible form. Water content differs between foods; portions are illustrative. This is not digestible amino-acid content, a protein-quality score, a complete-meal requirement or a PM intervention dose.
- Iron → BRS1-FM1-PM3 · Type A / direct
Food form & relationship limits
Human intake-to-dopamine responsiveness and clinical benefit were not established; the direct dopamine-metabolite evidence assessed here is preclinical deficiency evidence.
Mollusks, mussel, blue, raw; raw.
- Iron → BRS1-FM1-PM4 · direct
Food form & relationship limits
Human intake-to-noradrenaline responsiveness and clinical benefit were not established; the cited dopamine-metabolite and developmental evidence is not a noradrenaline-dosing trial.
Mollusks, mussel, blue, raw; raw.
- Iron → BRS1-FM1-PM5 · Type A / direct
Food form & relationship limits
Iron is required by the hydroxylase. That is not evidence that extra dietary iron raises brain serotonin when iron status is adequate.
Mollusks, mussel, blue, raw; raw.
- Phosphatidylcholine → BRS1-FM2-PM6 · Type A / derived
Food form & relationship limits
Human tracer evidence establishes phosphatidylcholine as a choline-provision route; it does not show delivery to cholinergic terminals or increased brain acetylcholine synthesis.
Mytilus mussel edible tissue; raw.
- DHA → BRS1-FM3-PM7 · Type A / direct
Food form & relationship limits
Diet can provide DHA for membrane incorporation. That does not establish an ADHD treatment effect or a human dosing rule from the porcine phospholipid comparison.
Mollusks, mussel, blue, raw; raw.
- Docosahexaenoic acid (DHA) → BRS1-FM5-PM12 · Type B / direct
Food form & relationship limits
This is a preclinical structural state response, not proof of an indispensable intake or verified new synapse counts. It does not establish human synapse growth, ordinary-food equivalence or cognitive benefit. Developmental mouse marker and visual-response evidence is additional, context-specific support; marker abundance is not an ultrastructurally verified contact count.
Mollusks, mussel, blue, raw; raw.
- Vitamin B12 (cobalamin) → BRS2-FM1-PM1 · Type A / derived
Food form & relationship limits
Provision of vitamin B12 does not show that increasing intake raises tissue remethylation flux. Added vitamin B12 further lowered blood homocysteine beyond folic acid in pooled trials, which remains a circulating marker.
Mollusks, mussel, blue, raw; raw.
- Zinc → BRS2-FM1-PM2 · Type A / direct
Food form & relationship limits
Human purified-enzyme metal removal/reconstitution and ligand mutants establish zinc-dependent capacity. Dietary zinc supplies the same element, but no human extra-intake BHMT flux response, intake threshold or cognitive benefit is established.
Mollusks, mussel, blue, raw; raw.
- Vitamin B12 (cobalamin) → BRS2-FM1-PM4 · Type A / direct
Food form & relationship limits
Added vitamin B12 can lower blood homocysteine further after folic acid. That is a concentration result, not a measured cycle-rate response.
Mollusks, mussel, blue, raw; raw.
- Phosphatidylcholine → BRS2-FM3-PM7 · Type A / derived
Food form & relationship limits
Plasma tracing does not measure absolute hepatic flux, intermediary SAM, ordinary-food equivalence or benefit.
Mytilus mussel edible tissue; raw.
- Selenium → BRS3-FM2-PM4 · direct
Food form & relationship limits
In selenium-deficient adults, plasma glutathione peroxidase activity levelled off once intake reached about 35 micrograms a day. Intake above that plateau did not raise the enzyme further, and the study did not measure net oxidative pressure.
Mollusks, mussel, blue, raw; raw.
- Zinc → BRS3-FM2-PM4 · Type A / direct
Food form & relationship limits
Curated human SOD1 and experimental structural evidence support a structural capacity relationship, not zinc-dependent catalysis identical to copper. Human dietary SOD responses vary by isoform and status; extra zinc can disturb copper availability. No general oxidative-stress improvement or benefit above adequacy is established.
Mollusks, mussel, blue, raw; raw.
- Iron → BRS3-FM2-PM4 · Type A / direct
Food form & relationship limits
Rat diet and tissue context; the kidney result is not a uniform response across organs or a human intake threshold. Human catalase haem identity supports capacity, not benefit from extra iron. Iron can also promote non-enzymatic oxidation; higher catalase activity is not a clinical benefit.
Mollusks, mussel, blue, raw; raw.
- Selenium → BRS3-FM2-PM5 · Type A / direct
Food form & relationship limits
Mouse whole-organ enzyme assays do not identify mitochondrial isoforms, a human food dose or benefit above selenium adequacy. Repletion response depended on dose; antioxidant capacity does not establish clinical prevention.
Mollusks, mussel, blue, raw; raw.
- Selenium → BRS3-FM2-PM6 · Type A / direct
Food form & relationship limits
Culture selenium exposure is not an oral food dose. This supports the thioredoxin arm, not selenium dependence of glutathione reductase, universal tissue recycling flux or benefit above adequacy.
Mollusks, mussel, blue, raw; raw.
- DHA (Docosahexaenoic Acid) → BRS3-FM3-PM7 · Type B / direct
Food form & relationship limits
Fifteen male soccer players, eight weeks, 1.16 g DHA/day in a matched beverage comparison. Ex-vivo stimulated production is not resting circulating signalling, receptor response or universal anti-inflammatory benefit. No effect from ordinary fish portions or brain/ADHD outcome is established; temperature and exercise responses differ.
Mollusks, mussel, blue, raw; raw.
- EPA → BRS3-FM3-PM8 · direct
Food form & relationship limits
Five days of 2.4 g a day in healthy adults raised some pro-resolving mediators, not every mediator, and not a disease-resolution outcome.
Mollusks, mussel, blue, raw; raw.
- DHA → BRS3-FM3-PM8 · direct
Food form & relationship limits
Five days of 2.4 g a day in healthy adults raised some pro-resolving mediators, not every mediator, and not a disease-resolution outcome.
Mollusks, mussel, blue, raw; raw.
- Iron → BRS4-FM1-PM1 · Type A / direct
Food form & relationship limits
This identifies iron centres in the chain. It does not show that eating more iron, once iron status is adequate, raises electron transport.
Mollusks, mussel, blue, raw; raw.
- Zinc → BRS5-FM1-PM1 · Type A / direct
Food form & relationship limits
Direct requirement evidence is principally cellular and animal, with human supplementation evidence concentrated in deficiency or disease contexts; higher intake is not established to improve PM1 in zinc-sufficient people.
Mollusks, mussel, blue, raw; raw.
- DHA (Docosahexaenoic Acid) → BRS6-FM4-PM8 · Type B / direct
Food form & relationship limits
Admission concerns a circulating hormone response in studied supplement/enriched-oil contexts. It does not establish adipose secretion, receptor sensitivity, universal benefit, ordinary-food efficacy or a food-effective dose. Mixture and carrier effects are not attributed to DHA alone; DHA-specific attribution uses the separate DHA-versus-EPA trial.
Mollusks, mussel, blue, raw; raw.
- Zinc → BRS-X(ECS-PM1) · Type A / direct
Food form & relationship limits
Human enzyme structure and catalysis establish the metal dependency, not dietary zinc-driven brain NAE flux or benefit above adequacy. Cellular zinc homeostasis and membrane substrate access constrain loading; no extra-zinc recommendation is established.
Mollusks, mussel, blue, raw; raw.
- DHA (Docosahexaenoic Acid) → BRS-X(ECS-PM2) · Type A / direct
Food form & relationship limits
Labelled neural-cell precursor experiments support formation; controlled oral-oil studies support corresponding plasma ethanolamide availability. Plasma concentration is not neuronal synthesis flux or receptor engagement, and no ordinary-food effective dose or clinical benefit is established. Direct is relative to this biosynthetic operation, not direct food content of synaptamide.
Mollusks, mussel, blue, raw; raw.
- EPA (Eicosapentaenoic Acid) → BRS-X(ECS-PM2) · Type A / direct
Food form & relationship limits
The oral EPA/DHA intervention evidence measures circulating corresponding ethanolamides, not neuronal synthesis rates or independent clinical mediation. Preserve active-arm, formulation and mixture limits. Direct refers to substrate provision to production; food EPA content is not food EPEA content or a quantified conversion yield.
Mollusks, mussel, blue, raw; raw.
- Zinc → BRS-X(Hormones-PM5) · Type A / direct
Food form & relationship limits
This Type A relationship concerns the receptor DNA-binding domain, not stimulation of testosterone production, tissue receptor occupancy, motivation or benefit from extra zinc. Cellular zinc homeostasis and receptor expression constrain metal availability. The primary crystal used an engineered rat receptor domain; human domain identity is curated. A zinc-finger mutation study tested an arginine substitution, not dietary zinc depletion.
Mollusks, mussel, blue, raw; raw.