Cod liver oil is one of the oldest food supplements, rich in vitamin D, A and omega-3. An extremely concentrated source of nutrients.

Below is the detailed nutritional value per 100 grams cod liver oil.
| Nutrient | Amount (100 g) | % RDA |
|---|---|---|
| 🔥 Calories (Energy) | 902 kcal | -- |
| 💪 Protein | 0 g | -- |
| 🧈 Fats | 100.0 g | -- |
| 🍚 Carbohydrates | 0 g | -- |
| 🌾 Fiber | 0 g | -- |
| Vitamin D | 10000 IU | 1667% |
| Vitamin A | 10000 IU | 333% |
| Omega-3 (EPA+DHA) | 20 g | -- |
| Vitamin E | 20 mg | 133% |
* RDA - Recommended Daily Allowance (EU Regulation 1169/2011). Percentages are calculated for an adult. Athletes' needs may be higher.
Here are the main cod liver oil benefits in an athlete's nutrition:
The best ways to prepare cod liver oil, while preserving maximum nutritional value:
With food - better absorbed with fats. In the morning or at lunch.
Best alternatives cod liver oil:
Fish oil, omega-3 capsules, flaxseed oil
This is a food supplement, not an everyday food. Cod liver oil naturally contains vitamin D, vitamin A and omega-3 fatty acids. Take only as much as indicated on the label — excess vitamin A accumulates in the body.
Choose a manufacturer that clearly states the vitamin D and A content per serving. Store in a dark, cool place, and in the refrigerator after opening. Monitor the smell: rancid oil has an unpleasant fish odor.
Cod liver oil is fish oil extracted from cod livers, so in addition to omega-3, it also contains vitamin A and vitamin D. It is precisely the vitamin A content that distinguishes it from regular fish oil: it can be high, and vitamin A is fat-soluble and accumulates in the body, so exceeding the dose can lead to excess. For this reason, the dose should be followed carefully.
Can I take it during pregnancy? Excess vitamin A during pregnancy can be risky — consult a doctor rather than deciding on your own.
How is it different from regular fish oil? Cod liver oil additionally contains vitamin A and D, so the dosage is different.
Can eating fish replace it? Partly — fatty fish provides omega-3, but vitamin D and A amounts depend on the fish.