Tilapia
Food · Protein · Food, Typed Supps
Tilapia is basically pure lean protein, great for muscles, but don't expect the omega-3 boost you get from salmon.
Stage by stage
- Chewing & Swallowing (Mouth): Chewing breaks tilapia's flaky, low-connective-tissue flesh into a bolus that moves easily down to the stomach.
- Stomach Breakdown (Stomach): Stomach acid and pepsin denature the fish's actin and myosin proteins, unwinding them into shorter peptide chains.
- Intestinal Absorption (Small intestine): In the small intestine, pancreatic and brush-border enzymes finish breaking those peptides into amino acids that are absorbed into the bloodstream along with selenium and vitamin B12.
- Muscle Repair & Use (Muscle tissue): Absorbed amino acids travel to muscle and other tissues to support protein synthesis and immune function, though tilapia's low omega-3 content means it contributes little to the body's anti-inflammatory fat supply.
Timing
Tilapia can be eaten any time of day, though pairing it with a small amount of dietary fat, such as olive oil, helps the body absorb its fat-soluble vitamin D.
Time to effect
- Hours to weeks: Amino acids from tilapia appear in the bloodstream within 1-2 hours of eating, but measurable gains in muscle mass from that protein require weeks of consistent intake combined with physical activity.
Allergens
Contains: Fish. Derived from what this food is, not from a product label.
Eating patterns
Fits: Pescatarian, Kosher, Keto, Gluten-free. Depends on the product: Halal, Low-FODMAP.
Satiety
176 on the satiety index, where white bread is 100 — high. Modelled from the Holt et al. (1995) measurements.
Environmental footprint
13.6 kg CO2e and 3691 litres of freshwater per kg, matched to "Fish (farmed)" in Poore & Nemecek (2018), Science 360.
Cost band
Mid — roughly £11 per kg, as a band midpoint rather than a price.
Key nutrients
Nutrition per 100g
- Calories: 135.8
- Protein: 22g
- Carbohydrate: 0g
- of which sugars: 0g
- Fat: 5.2g
- of which saturated: 1.6g
- Fibre: 0g
- Sodium: 85mg
Food vs. supplement
Whole tilapia delivers protein, selenium, and vitamin B12 together in an easily digested food matrix that a supplement alone can't replicate.
Kitchen tip
Bake or grill tilapia rather than deep-frying it, since frying adds significant fat to what is naturally a very lean fish.
Common myth
"Tilapia is worse for you than bacon." In reality: This claim spread after a 2008 Wake Forest study found farmed tilapia has a high ratio of inflammatory omega-6 (arachidonic acid) to omega-3 (EPA) fats, about 11:1 versus under 1:1 in salmon, but it ignores that tilapia is a lean fish with far less total fat and far fewer calories than bacon; scientists still disagree on whether the omega-6:3 ratio alone meaningfully affects health, and no evidence shows tilapia causes harm comparable to processed pork.
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