Healthy Oils
Olive Oil

This food is best grown in extremely tall or stacked bio-reactors.

1.1 Overview & Structure

Extra virgin olive oil is the premier ‘liquid lipid’, which is a plant-based fat that stays fluid at room temperature, extracted from the fruit of the olive tree ³. Unlike oils made from seeds, this oil is a mechanical extract, meaning it is squeezed directly from the fleshy pulp through physical pressure ^5,6. The plant stores energy as monounsaturated fats, which are heart-friendly fatty acids with a single flexible chemical link ⁴. Because the oil is a pure fat, it contains no fibre or cell walls, which means the body can absorb it very quickly to use as energy or to build cell membranes ⁶.

1.2 Physical & Culinary Performance

This oil acts as a powerful delivery system that helps the body absorb vitamins from other vegetables that would otherwise pass through the system unused ⁶. It is chemically stable, meaning it does not easily break down when stored correctly, but it is best used for cold finishing or light cooking to preserve its delicate nutrients ^5,17. When eaten raw, it often has a peppery sting in the throat caused by oleocanthal, which is a natural chemical that works like a common anti-inflammatory medicine to soothe the body ¹¹. It is a “low-FODMAP” (highly-digestible) food, which means it contains no fermentable sugars that cause bloating, making it very gentle on the gut ¹⁶.

1.3 Storage & Life Hacks

The quality of the oil is threatened by oxidation, which is a damaging chemical reaction caused by exposure to air, light, or heat ⁵. To protect it, you should always keep it in a dark glass bottle in a cool cupboard rather than on a sunny windowsill ⁵. A clever kitchen life hack is to use olive oil when eating leafy greens; the fats in the oil latch onto the carotenoids, which are the colourful health-boosting pigments in the leaves, making them much easier for your body to take in ⁶.

1.4 Suitability & Ethics

This oil is 100% plant-derived and is fully suitable for vegans ¹⁰. It is naturally gluten-free, as it is pressed from fruit rather than grains, so it contains no proteins that trigger coeliac issues ⁹. Most “extra virgin” grades are made using a cold mechanical press, which is the most ethical and natural method as it avoids the use of harsh chemical solvents often found in cheaper seed oils ¹⁷. Olive groves also act as carbon sinks, which are natural areas that soak up and store carbon dioxide from the atmosphere ²¹.

1.5 Seasonality & Environment

Olives are a Mediterranean crop that requires a long, hot summer and a mild winter to produce fruit ¹⁹. While they can be grown in the southern UK, the trees usually need extra shelter from frost and may not produce enough fruit for oil ¹⁹. Traditional farming relies mostly on natural rainfall, using about 214 litres of water for a standard batch, which is lower than many other tree crops ¹⁵. Because olive trees are woody perennials, which are long-lived plants with hard trunks, they take up a fair amount of land in traditional low-density orchards ^14,18.

1.6 Safety & Consumption Context

While this oil is a “gold standard” for health, it is very high calorie, containing 884 calories per 100g ³. Some sources describe a healthy intake as being part of a balanced diet where it replaces saturated fats like butter ⁴. In Mediterranean cultures, it is traditionally used as a primary fat source and is balanced with high-fibre vegetables and legumes to ensure a steady release of energy ¹.

1.7 Health & Nutrition Superpower

The nutritional superpower of olive oil is its massive concentration of Monos (oleic acid), providing over 251% of the daily reference value ³. It is also exceptionally rich in Vitamin K1, providing over 80% of the daily requirement, which is a nutrient that the body needs for healthy blood clotting and bone strength ⁷. Furthermore, it contains nearly 96% of the daily Vitamin E requirement, which acts as a protective shield for your cells against everyday damage ⁷.

1.8 Processing Fidelity

The “Extra Virgin” label is a mark of processing fidelity, which means the oil has not been altered by high heat or chemicals ¹⁷. Refined or “light” oils have a lower count of polyphenols, which are the natural plant chemicals that provide antioxidant benefits ^8,17. High fidelity oil contains oleuropein, a bitter-tasting plant compound that has been shown to help keep blood pressure within a healthy range ⁸. By choosing cold-pressed versions, you ensure these delicate molecules remain intact and active within the oil ^11,17.

2. Land-Use & Human Labour Efficiency

Nutrients per Hectare (N/H)

• Traditional Production Score: 12/100
  Olive trees are slow-growing and require significant land spacing (2.5 m² per 100g unit), and UK climate limitations prevent reliable local harvests ^14,19.
• Ultra-Efficient Production Score: 85/100
  By utilising vertical bio-reactors for cellular fermentation of olive lipids and antioxidants, the nutrient yield can be scaled 365 days a year without needing any horizontal land ¹⁸.

Potential Annual Nutrient Yield (PANY): 79/100

This score is high due to the extreme nutrient density (Vitamin E, K1, and Monos). While the trees cannot be stacked, the ability to produce the active medicinal compounds like oleocanthal in bio-reactors offers a massive boost to efficiency ¹⁸.

Integrated Living Wall Assessment

Olive trees are woody and too heavy for living wall structures ¹⁸. However, the precision fermentation system moves production to a subterranean or technical storey, allowing the exterior walls of the building to be used for lighter, climbing crops.

Human Labour Intensity (HLI)

• Traditional Labour Score: 72/100 – Large Amount of Manual Work.
  Harvesting olives often involves significant manual effort, including shaking trees and hand-collecting fruit in uneven terrain ¹.
• Automated Labour Score: 8/100 – Tiny Amount of Manual Work.
  The bio-reactor system is almost entirely automated, using computer-controlled nutrient feeds and robotic harvesting of the fermented lipids ¹.

Extra virgin olive oil is the gold standard of the ‘liquid lipid’ group ³, acting as a primary delivery system for heart-healthy monounsaturated fats ⁴ and fat-soluble vitamins ⁷. Tapped directly from the fruit through mechanical pressing ⁵, it remains chemically stable and rich in polyphenols like oleocanthal ¹¹, which provides its characteristic peppery sting and natural anti-inflammatory properties ¹¹. In the UK, it is a vital functional tool for increasing the absorption of nutrients from other food groups ⁶—such as the carotenoids in leafy greens—while providing a concentrated source of Vitamin E and Vitamin K1 ⁷ to support cellular repair and bone health.

Data Tables

1. Main Nutrients Table

Strictly sorted in descending order by % Ref Value per 100g. All details provided are for Extra Virgin Olive Oil.
Note: As oils contain 0g protein, the portion is standardised to 100g for comparative audit purposes.

Nutrient	% Ref Value per 100g	Value per 100g	Value per Portioned Unit	Source
Monos	251.7%	73.0 g	73.0 g	3
Total Fat	128.2%	100.0 g	100.0 g	3
Vitamin E	95.7%	14.35 mg	14.35 mg	7
Vitamin K1	80.3%	60.2 mcg	60.2 mcg	7
Saturated Fat	57.5%	13.8 g	13.8 g	3
Energy	44.2%	884 kcal	884 kcal	3
Polys	43.8%	10.5 g	10.5 g	3

2. Amino Acid Table

Strictly sorted in descending order by % Ref Value per 20g Protein Portion. All details provided are for Extra Virgin Olive Oil.

Amino Acid	% Ref Value	Value per 100g	Value per Portioned Unit	Source
All Amino Acids	0.0%	0.0 g	0.0 g	6

3. Fatty Acid Table

Strictly sorted in descending order by % Ref Value per 100g. All details provided are for Extra Virgin Olive Oil.

Fatty Acid	% Ref Value per 100g	Value per 100g	Value per Portioned Unit	Source
Monos (Oleic Acid)	251.7%	73.0 g	73.0 g	3
Saturated Fat	57.5%	13.8 g	13.8 g	3
Polys (Linoleic)	43.8%	10.5 g	10.5 g	3
Omega-3 ALA	6.3%	0.76 g	0.76 g	3

4. Fibre Fractions Table

Fibre Type	Value per 100g	Functional Role	Source
Fibre	0.0 g	Oils are mechanical extracts and contain no fibre fractions.	6

5. Anti-Nutritional Factors Table

Factor	Level	Mitigation Strategy	Source
Oxidation	Moderate	Store in dark glass bottles away from light and heat.	5
Free Fatty Acids	Low	Choose “Extra Virgin” grade for lowest acidity.	11

6. Phytochemicals Table

Strictly sorted in descending order by % Ref Value per 100g. All details provided are for Extra Virgin Olive Oil.

Phytochemical	% Ref Value	Value per 100g	Functional Context	Source
Oleocanthal	N/A	High	A natural anti-inflammatory agent with a peppery sting.	11
Oleuropein	N/A	High	Potent antioxidant for blood pressure regulation.	8

7. Allergen & Suitability Table

Category	Status	Notes	Source
Gluten-Free	Yes	Naturally free from all grain proteins.	9
Vegan	Yes	100% plant-derived lipid source.	10
Low-FODMAP (highly-digestible)	Yes	Pure lipids contain no fermentable carbohydrates.	16

8. Commercial Forms Table

Form	Processing Method	Primary Use	Source
Extra Virgin	Cold mechanical press	Finishing and dressings; highest nutrition.	17
Refined / Light	Chemical/Heat filtered	High-heat frying; lower polyphenol count.	17

9. Environmental Indicators Table (Current Traditional Agriculture)

Strictly sorted in descending order by % Ref Value per 100g. All details provided are for Extra Virgin Olive Oil.

Indicator	Traditional Value	Value per Portioned Unit	Traditional Context	Source
Freshwater Use	214 Litres	214 Litres	Mostly relies on natural rainfall in the Mediterranean.	15
Carbon Footprint	0.45 kg CO2e	0.45 kg CO2e	Olive groves act as significant carbon sinks.	21
Land Use	2.5 m²	2.5 m²	Based on traditional low-density tree spacing.	14

10. Home Growing & Aeroponic Audit

Growing Method	Feasibility	Aeroponic / Method Benefits	Source
Traditional Orchard	Medium	Possible in southern UK; requires shelter.	19
Aeroponic	None	Woody perennials are unsuited for vertical stacks.	18

Olive trees are not suitable for vertical aeroponic growth ¹⁸ because they are slow-growing, woody perennials that require seasonal dormancy and specific soil drainage to develop fruit ¹⁹. An alternative ultra-land-efficient option is the use of Bioreactors to cultivate specific olive-derived antioxidants like Oleocanthal through cellular fermentation ¹⁸.

Sources & Endnotes – please see the References & Bibliography section for full details of all sources:

1. Throughout this audit, each food’s nutrient content has been compared to the Reference Daily Intakes (RDIs) of different nutrients, essential fats and amino acids for 21-24 year old females. These were based on data from the World Health Organisation (WHO), the USDA Dietary Guidelines, and the UK Scientific Advisory Committee on Nutrition (SACN). For full details, visit: https://naturalhuman.co.uk/reference-intakes/. These values were selected solely as a standardised, fixed benchmark to calculate and compare the exact percentage of nutrients provided by different foods per portion. Using a single baseline like this allows for an objective, side-by-side comparison of individual foods’ nutritional profiles; however, these targets are not universally applicable & must not be considered to be a recommendation.
2. Google AI – Calculated portion and nutrient density ratios based on analytical data.
3. USDA FoodData Central – Olive oil, extra virgin, nutritional profile (usda.gov).
4. British Nutrition Foundation – Monounsaturated fats and heart health (nutrition.org.uk).
5. International Olive Council – Standards for oxidation and storage (internationaloliveoil.org).
6. ScienceDirect – Bioavailability of nutrients with plant lipids (sciencedirect.com).
7. National Institutes of Health (NIH) – Vitamin E and Vitamin K1 fact sheets (nih.gov).
8. Journal of Agricultural and Food Chemistry – Polyphenol profiles of cold-pressed oils (acs.org).
9. Coeliac UK – Naturally gluten-free fats and oils (coeliac.org.uk).
10. The Vegan Society – Plant lipids in a vegan diet (vegansociety.com).
11. Molecules Journal – Oleocanthal and anti-inflammatory pathways (mdpi.com).
12. European Food Safety Authority (EFSA) – Safety of free fatty acids (europa.eu).
13. Allergy UK – Low allergenicity of refined oils (allergyuk.org).
14. Our World in Data – Environmental impact of olive vs seed oils (ourworldindata.org).
15. Water Footprint Network – Global water use for olive groves (waterfootprint.org).
16. Monash University – FODMAP levels in pure lipids (monashfodmap.com).
17. Healthline – Differences between EVOO and refined olive oil (healthline.com).
18. Frontiers in Plant Science – Constraints of aeroponics for trees (frontiersin.org).
19. Royal Horticultural Society (RHS) – Growing olives in the UK climate (rhs.org.uk).
20. UNESCO-IHE – Water footprint of agricultural products (un-ihe.org).
21. Life Cycle Assessment Studies – Carbon sequestration in olive orchards (sciencedirect.com).

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