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We favour food-form sources of fat-soluble vitamins where the nutrient matrix is intact rather than synthesised. Green Pasture's fermentation method is one of the few approaches that achieves this at a consistent, practitioner-grade standard. For patients whose vitamin D and omega-3 status need support, this oil offers both in a single, minimally processed daily dose — which is why it has earned a place on our shelves.
About this product
Fermented Skate Liver Oil (Liquid)
Green Pasture's Fermented Skate Liver Oil is a traditionally prepared liquid oil made from skate fish liver, slow-fermented rather than heat-extracted. Fermentation is chosen deliberately: it preserves the fat-soluble vitamins A and D and the omega-3 fatty acids EPA and DHA that would otherwise be degraded by industrial processing. The result is an oil whose nutrient profile more closely resembles what the liver contains in its natural state.
The liquid format suits those who want flexible dosing and prefer to avoid the fillers and binders found in capsule products. It can be taken straight from the spoon or mixed into honey, nut butter, or a small amount of juice for those sensitive to the flavour. A single small daily serving is all that is needed.
This oil fits naturally into a nutrient-dense, whole-food approach to daily supplementation. It is particularly relevant for people whose diets are low in oily fish, or who are looking to support their intake of fat-soluble vitamins through a food-form source rather than isolated synthetic nutrients. Vitamins A and D together play roles in immune regulation, bone metabolism, and cellular function, while EPA and DHA are studied extensively for cardiovascular and cognitive health.
Green Pasture specialises in fermented fish oils and is one of very few producers using this low-temperature method at scale. The single ingredient — raw fermented skate liver oil — reflects a deliberately minimal formulation approach.
What it does
Benefits
- 01
Delivers fat-soluble vitamins A and D in food form
- 02
Provides omega-3 fatty acids EPA and DHA daily
- 03
Fermentation preserves nutrients lost in heat extraction
- 04
Liquid format allows flexible, filler-free dosing
- 05
Suits those with low oily fish intake
Get the most from it
How to use
Take a quarter teaspoon (approximately 1.25 ml) once daily, or as directed by your practitioner. Take it straight from the spoon, or blend into honey, nut butter, or a small amount of juice. Shake gently before use, refrigerate after opening, and consume within 60 days.
What's inside
Ingredients
View full ingredient list
Raw fermented skate (fish) liver oil. Contains fish. For allergens, see ingredients in bold.
Common questions
Frequently asked
What does fermentation do that standard extraction doesn't?
Heat-based extraction can degrade heat-sensitive nutrients, including certain fat-soluble vitamins and fatty acids. Fermentation works at low temperatures, which is thought to preserve the nutrient profile closer to its natural state in the liver. It is a slower, more traditional process, and one of the main reasons this oil is formulated this way.
How does the flavour compare to standard fish oil?
Fermented skate liver oil has a stronger, more pronounced taste than most refined fish oils, which are often deodourised. If you find it challenging straight, mixing it into a spoonful of honey or nut butter softens the flavour considerably without affecting the oil itself.
Is this suitable if I am pregnant or breastfeeding?
This product contains vitamin A, which requires care during pregnancy, as excess intake can be harmful. If you are pregnant, breastfeeding, or trying to conceive, consult your clinician before use — ideally to review your total vitamin A intake from all sources.
Can I take this alongside a separate vitamin D supplement?
It is worth checking your total intake of fat-soluble vitamins across all supplements before combining them, as vitamins A and D are both present in this oil. Your practitioner can help you assess whether an additional supplement is appropriate or redundant.
How should I store it and how long does it keep once opened?
Refrigerate after opening and consume within 60 days. Store out of direct light. Only open if the seal is intact, and keep out of reach of young children.
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