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)

What Is Fish Oil?

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

What Does Fish Oil Taste Like?

Fish Oil has a fishy, pungent, briny taste with marine, fishy (can be oxidized and rancid) aromas.

Taste
Fishy, Pungent, Briny
Texture
Oily, Viscous, Smooth
Aroma
Marine, Fishy (can be oxidized and rancid)
Acidity
Low

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.

Fish Oil Substitutes & Ratios

The best substitute for Fish Oil is Algae Oil, used at a 1:1 ratio. Vegan-friendly, rich in DHA (sometimes EPA), direct substitute for omega-3s.

Substitutes for Fish Oil with ratios
Substitute Ratio Best for
Algae Oil Best 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.

How to Choose & Store Fish Oil

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

What Pairs Well With Fish Oil?

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

Frequently Asked Questions

What does Fish Oil taste like?

Fishy, Pungent, Briny Marine, Fishy (can be oxidized and rancid)

What is a good substitute for Fish Oil?

The best substitute is Algae Oil (1:1). Vegan-friendly, rich in DHA (sometimes EPA), direct substitute for omega-3s.

How do you choose and store Fish Oil?

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

Related Supplement/Fat Ingredients

Need a substitute for Fish Oil right now, or a recipe that uses it? Ask Sous, your AI sous-chef.