algae oil vs omega-3 supplements: Protein

algae oil: 0 g / 100 g. omega-3 supplements: 0 g / 100 g.

algae oil vs omega-3 supplements: Climate impact

algae oil: 1.2 kg CO₂e / kg. omega-3 supplements: 5 kg CO₂e / kg.

algae oil vs omega-3 supplements: Water use

algae oil: 30 L / kg. omega-3 supplements: 400 L / kg.

algae oil vs omega-3 supplements: Land use

algae oil: 0.2 m² / kg. omega-3 supplements: 2 m² / kg.

algae oil vs omega-3 supplements: Saturated fat

algae oil: 1 g / 100 g. omega-3 supplements: 1.5 g / 100 g.

algae oil vs omega-3 supplements: Fibre

algae oil: 0 g / 100 g. omega-3 supplements: 0 g / 100 g.

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algae oil vs omega-3 supplements

How algae oil and omega-3 supplements compare on protein, climate impact, water use, land use, saturated fat and fibre — with a clear verdict.

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The numbers

The numbers	algae oil	omega-3 supplements
Protein (g / 100 g)	0	0
Climate impact (kg CO₂e / kg)	1.2	5
Water use (L / kg)	30	400
Land use (m² / kg)	0.2	2
Saturated fat (g / 100 g)	1	1.5
Fibre (g / 100 g)	0	0

The verdict

algae oil is the better everyday choice. It uses less land and water and carries a smaller carbon footprint than omega-3 supplements, while covering the same role on the plate. If protein density is your priority, adjust portion size rather than going back to omega-3 supplements.

Sources: Poore & Nemecek (Science, 2018), FAO, USDA FoodData Central, Mekonnen & Hoekstra (2011).

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