Supplement/Fat | Keto

Fish Oil

Various (e.g., Gadus morhua, Scomber scombrus) Allergens: Fish
Fish Oil

Sourcing & Taxonomy

  • Family N/A (Animal product)
  • Primary Cuisine Global (mainly supplemental)
  • Seasonality Year-Round
  • Source Oily Fish (e.g., Anchovies, Sardines, Mackerel, Salmon)

The Forktionary Angle

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Definition

An oil derived from the tissues of oily fish, rich in omega-3 fatty acids like EPA and DHA.

Sensory Profile

TasteFishy, Pungent, Briny
TextureOily, Viscous, Smooth
AromaMarine, Fishy (can be oxidized and rancid)
AcidityLow

Technical Metrics

Nutrition Facts

Per 1 tsp (5ml)
Calories900 kcal
Total Fat100 g
Saturated Fat20 g
Trans Fat0 g
Cholesterol600 mg
Protein0 g
Total Carbohydrate0 g
Dietary Fiber0 g
Total Sugars0 g
Calcium0 mg
Iron0 mg
Potassium0 mg

Chef’s Secret

Add to salad dressings or cold dishes to avoid oxidation and preserve omega-3 benefits; never use for high-heat cooking.

Substitutions

Best Match

Algae Oil

1:1

Vegan-friendly, rich in DHA (sometimes EPA), direct substitute for omega-3s.

Flaxseed Oil

1:1

Contains ALA (alpha-linolenic acid), which converts to EPA/DHA but less efficiently.

Chia Seed Oil

1:1

Similar to flaxseed oil in ALA content, good vegan option for general omega-3.

Walnuts / Fatty Fish (e.g., Salmon)

Varies

Whole food sources of omega-3s, but not a direct oil substitute.

Buying Guide

Choose reputable brands, look for third-party testing for purity (heavy metals, PCBs), and store in a cool, dark place.

Flavor Pairings

Lemon dill capers (when used in cooking) salads smoothies (for supplements).