Palm oil shows up in an extraordinary range of products, from the cookies and instant noodles in your pantry to the lipstick in your bathroom cabinet and, increasingly, the fuel in diesel engines. It is the world’s most produced vegetable oil, with global output exceeding 90 million tonnes annually, and its physical and chemical versatility explains why it ends up in places you might not expect. The story of palm oil’s uses is also a story about tradeoffs in health, environment, and livelihoods that make the commodity one of the most debated agricultural products on the planet.
Why Palm Oil Dominates the Food Industry
Walk through a supermarket and you will encounter palm oil in margarine, chocolate, biscuits, ice cream, bread, peanut butter, frozen pizza, and dozens of other processed foods. The reason is partly economic and partly chemical. Palm oil is semi-solid at room temperature, which means food manufacturers can use it to give products a smooth, creamy texture without needing to hydrogenate liquid oils, a process that creates unhealthy trans fats. It also has a high smoke point and strong resistance to going rancid, making it one of the most stable options for deep-frying at industrial scale.
Red palm oil and palm olein, a liquid fraction of the crude oil, have high oxidative stability thanks to their oleic acid content and natural antioxidants. That stability translates into longer shelf life for finished food products and less degradation during repeated frying cycles compared to many other cooking oils.1PubMed Central. Balancing functional and health benefits of food products formulated with palm oil as oil sources For bakers, palm stearin, the solid fraction, works as a shortening agent that creates the flaky layers in pastries and the firm structure in pie crusts without hydrogenation.
A key industrial step called fractionation makes all of this possible. Crude palm oil is cooled under controlled conditions to separate it into olein (liquid) and stearin (solid), each with distinct melting points and textures suited to different food applications.2European Journal of Lipid Science and Technology. A Review on the Fundamentals of Palm Oil Fractionation: Processing Conditions and Seeding Agents This separation is what allows a single raw material to serve double duty as both a frying oil and a solid fat in confectionery coatings. Manufacturers can also blend the fractions back together in custom ratios to hit specific melting profiles, which is why palm oil is so difficult to replace with a simple one-for-one substitute.
Beyond the Kitchen: Cosmetics, Soap, and Pharmaceuticals
Roughly half of palm oil’s end uses have nothing to do with eating. The fatty acids derived from palm oil, particularly palmitic and stearic acids, are foundational ingredients in soap, shampoo, moisturizers, and toothpaste. These fatty acids act as surfactants (they help water mix with oil and grease), emulsifiers (they keep creams from separating), and skin-conditioning agents. Palm-derived glycerine shows up in everything from hand sanitizer to cough syrup.
In pharmaceutical formulations, palm oil derivatives serve as excipients, the inactive ingredients that help deliver an active drug. Fatty acid esters from palm and lauric oils are used in suppositories, ointments, and tablet coatings, chosen for their stability and their compatibility with skin and mucous membranes.3Journal of the American Oil Chemists’ Society. Pharmaceutical and cosmetic uses of palm and lauric products When you read “sodium palmate” or “cetyl alcohol” on a product label, you are looking at palm oil derivatives. The sheer number of these downstream chemicals, from isopropyl palmitate in sunscreens to sorbitan esters in emulsified medications, helps explain why palm oil is entangled in supply chains far removed from food.
Palm Oil as Biofuel
The energy sector has become one of the fastest-growing markets for palm oil. Two main fuel types are produced from it. The first and more established route is biodiesel, technically a fatty acid methyl ester (FAME), made by reacting palm oil with methanol. Indonesia, the world’s largest palm oil producer, has mandated increasingly high biodiesel blending requirements for its domestic diesel supply, and palm-based biodiesel is also exported globally.
The second, newer route is hydrotreated vegetable oil, or HVO. Rather than a chemical reaction with methanol, HVO is made by treating palm oil with hydrogen under high pressure, producing a paraffinic fuel that is chemically closer to petroleum diesel and can be dropped into existing engines and pipelines with little or no modification.4Scientific Contributions Oil and Gas. Development of Analytical Method for Determination of Palm-Based Hydrotreated Vegetable Oil (Hvo) in Diesel Blends Using Gas Chromatography: Preliminary Study Indonesia has invested heavily in HVO development as part of its strategy to cut fossil fuel dependence and boost domestic consumption of its palm oil surplus.5E3S Web of Conferences. Characterization of palm oil-based biodiesel, hydrotreated vegetable oil, and fatty acid methyl esters as alternative renewable fuels to replace petrodiesel in diesel engines
The biofuel story gets complicated at the policy level, however, and that tension is reshaping global trade.
The EU Phase-Out and Trade Friction
The European Union’s Renewable Energy Directive classifies palm oil as the only biofuel feedstock with a “high risk” of causing indirect land-use change, meaning that growing palm for fuel is judged likely to push agriculture into forests elsewhere.6GCB Bioenergy. Phasing out palm and soy oil biodiesel in the EU: What is the benefit? Under this rule, EU member states must phase out palm oil-based biofuels from their renewable energy targets by 2030. Rapeseed and soybean biodiesel, by contrast, are not subject to the same restriction.
Malaysia challenged this policy at the World Trade Organization, and in April 2024 a WTO panel found that while the EU’s concept of differentiating biofuels by land-use change risk was acceptable in principle, gaps in how the rules were applied disadvantaged palm oil compared to other feedstocks in ways that violated multilateral trade rules.7Review of European, Comparative & International Environmental Law. Biofuel restrictions and indirect land‐use change: What does the WTO say? The dispute is far from settled and has major implications for the future of palm-based biofuels in European markets. For palm oil-producing countries, the EU decision looks like protectionism favoring domestically grown oilseeds; for European policymakers, it is a climate policy tool. Both sides have a point, and the resolution will likely shape how other regions regulate biofuel feedstocks in the coming decade.
Health Effects: What the Evidence Actually Shows
Palm oil’s reputation as unhealthy comes mainly from its saturated fat content, which sits at about 50 percent of total fatty acids. That is higher than most liquid vegetable oils, though lower than coconut oil or butter. Health agencies have long recommended limiting saturated fat intake to reduce cardiovascular risk, and palm oil gets swept into that guidance.
The actual clinical evidence, however, is less clear-cut than the headlines suggest. A systematic review of human studies found no strong evidence that palm oil consumption, on its own, is clearly associated with increased risk of coronary heart disease, stroke, or cardiovascular mortality.8PubMed Central. Systematic review of palm oil consumption and the risk of cardiovascular disease A separate review concluded that palm oil consumed as part of a balanced diet does not appear to carry incremental cardiovascular risk and that animal and human studies have not consistently shown it raises serum cholesterol levels.9PubMed Central. Palm oil and the heart: A review That does not mean you should pour it freely on everything, but the idea that palm oil is uniquely dangerous among cooking fats is not well supported by the current body of evidence.
Red palm oil in particular is a rich source of carotenoids (giving it the characteristic orange-red color), tocotrienols, and tocopherols, all forms of vitamin E with antioxidant properties.10PubMed Central. Red Palm Oil: Nutritional Composition, Bioactive Properties, and Potential Applications in Health and Cosmetics: A Narrative Review The ratio of saturated to unsaturated fatty acids in palm oil is close to one-to-one, and the presence of those antioxidant compounds may partially offset concerns about the saturated fat content.11PubMed. Palm oil: biochemical, physiological, nutritional, hematological, and toxicological aspects: a review Most of these beneficial compounds, though, are destroyed or removed during conventional refining. The refined, bleached, and deodorized palm oil in a package of cookies bears little nutritional resemblance to crude red palm oil.
Processing Contaminants Worth Knowing About
A separate health concern involves chemicals formed during the refining process itself. When palm oil is heated to high temperatures during deodorization, compounds called glycidyl esters and monochloropropanediol esters (MCPD esters) can form. These have raised toxicity concerns, particularly in European and American regulatory circles, and have prompted tighter limits on their presence in refined oils.12OCL. Food quality assurance of crude palm oil: a review on toxic ester feedstock The issue is not unique to palm oil, since other refined vegetable oils also produce these contaminants, but palm oil tends to generate higher levels because of its chemical makeup. Refiners have been developing lower-temperature processing techniques and enzymatic treatments to bring these contaminant levels down.
The Land Efficiency Paradox
One of the most striking facts about oil palm is how productive it is per hectare. Oil palm produces over 90 million tonnes of oil from about 29 million hectares of land, averaging around 3.3 tonnes of oil per hectare. The three major annual oilseed crops, soybean, rapeseed, and sunflower, collectively produce about 121 million tonnes of oil but require roughly 191 million hectares to do it, averaging only 0.6 tonnes per hectare.13Agronomy. Agronomy and Environmental Sustainability of the Four Major Global Vegetable Oil Crops: Oil Palm, Soybean, Rapeseed, and Sunflower In other words, palm oil yields about five to six times more oil per unit of land than its main competitors.
This efficiency is both the strongest argument in favor of palm oil and the source of its deepest environmental problem. Because oil palm thrives in tropical lowlands, exactly where some of the world’s most biodiverse rainforests and carbon-rich peatlands exist, expansion has driven massive deforestation in Southeast Asia. Replacing palm oil with other oilseed crops would require vastly more land, potentially causing even greater habitat destruction elsewhere. But that mathematical argument does not help the orangutans whose forests have already been cleared.
Carbon Emissions from Peat Conversion
The climate cost of palm oil depends enormously on where the plantation sits. When tropical peat swamp forest is drained and converted to oil palm, the decomposing peat releases greenhouse gases for decades. A study of Southeast Asian peat conversion found emissions in the range of 70 to 117 tonnes of CO2 equivalent per hectare per year, with carbon dioxide and nitrous oxide each responsible for a large share.14Nature Communications. Greenhouse gas emissions resulting from conversion of peat swamp forest to oil palm plantation The researchers estimated that peat conversion for palm oil in Malaysia and Indonesia was contributing roughly 17 to 28 percent of those two countries’ combined national greenhouse gas emissions. That is a staggering figure for a single land-use activity and is the main reason peatland protection has become a focal point for palm oil sustainability efforts.
Palm oil grown on mineral soils or previously degraded land carries a much smaller carbon footprint. The challenge is that the economic incentives often point toward peat, which tends to be cheap, available, and already partly logged.
Does Sustainability Certification Work?
The Roundtable on Sustainable Palm Oil (RSPO) is the most widely recognized certification scheme for palm oil. It sets standards for environmental management, labor rights, and community relations. But the evidence on its effectiveness is mixed in instructive ways.
On the positive side, certified plantations in Indonesia showed a measurable reduction in deforestation: certification lowered the annual rate of forest loss by about a third compared to what would have happened without it.15PubMed Central. Effect of oil palm sustainability certification on deforestation and fire in Indonesia However, the same study found that most plantations contained very little forest when they received certification, meaning the scheme was often ratifying already-cleared land rather than protecting standing forest. And certification had no detectable effect on forest loss in peatlands or on the rate of fire.
A more recent analysis found a different kind of unintended consequence: certified plantations in Malaysia showed decreased production efficiency after obtaining RSPO certification, likely because the compliance process diverted management attention and resources away from maximizing yields.16PubMed Central. Sustainable palm oil certification inadvertently affects production efficiency in Malaysia That creates a tension. If sustainable certification makes each hectare less productive, producers need more land to meet the same demand, which could undercut the environmental goals the certification is supposed to advance. This does not mean certification is useless, but it suggests the scheme needs to pair environmental standards with agronomic support so that yields do not slip as a side effect.
Livelihoods and Labor
The socioeconomic picture of palm oil is as layered as the environmental one. In Indonesia, oil palm expansion over the past two decades has contributed to rural poverty reduction while simultaneously causing serious environmental damage through land clearing and peat conversion.17PubMed Central. Decentralization and the environment: Assessing smallholder oil palm development in Indonesia Whether a community benefits depends heavily on context. Villages that already had market-oriented economies and moderate forest cover tended to see improvements in well-being when plantations arrived. But remote communities with high forest cover and subsistence-based livelihoods often fared worse after oil palm development.18World Development. Does oil palm agriculture help alleviate poverty? A multidimensional counterfactual assessment of oil palm development in Indonesia
In Africa, where the palm oil sector is less industrialized, smallholder farmers growing five to ten hectares of oil palm in Cameroon earned net annual incomes of roughly $2,700 to $5,450, well above local poverty thresholds and comparable to wages earned by workers with a secondary education.19PLoS ONE. Does investment in palm oil trade alleviate smallholders from poverty in Africa? Investigating profitability from a biodiversity hotspot, Cameroon Palm oil, for these growers, is a genuine pathway out of poverty.
The labor picture on large plantations is darker. Malaysia’s palm oil industry relies heavily on migrant workers, who make up an estimated 80 percent of the plantation workforce. Research has documented significant disparities: Bangladeshi workers, for instance, were concentrated in the highest-risk jobs, earning less than 900 Malaysian ringgit per month (around $200) while carrying heavy recruitment debts. Indonesian workers filled a wider range of roles with moderate debts and somewhat better earnings, while Thai workers near the border had more mobility but remained vulnerable because many lacked documentation.20PubMed Central. Structured vulnerability: nationality stratifies wages, working conditions, and labor rights among migrant workers in Malaysian oil palm plantations These findings have prompted import bans and withhold-release orders from countries such as the United States on specific palm oil producers.
What Happens to the Waste
A palm oil mill generates enormous quantities of waste: empty fruit bunches (the fibrous husks left after oil extraction), palm kernel shells, and a thick liquid effluent called palm oil mill effluent, or POME. Historically, POME was a pollution problem, dumped into waterways where its high organic content would deplete oxygen and kill aquatic life.
Today, much of that waste stream is being redirected into energy. Anaerobic digestion of POME breaks down the organic matter and produces biogas, turning a pollution liability into a fuel source.21PubMed Central. Anaerobic Treatment of Palm Oil Mill Effluent in Pilot-Scale Anaerobic EGSB Reactor Empty fruit bunches can be dried, gasified, and converted into syngas, a fuel that can drive a gas engine or turbine for electricity generation. Some mills are integrating both waste streams, using biogas from POME and syngas from empty fruit bunches together in combined heat-and-power systems.22Applied Thermal Engineering. Advanced power generation using biomass wastes from palm oil mills In principle, a fully optimized mill could be energy self-sufficient, running its own operations on waste-derived power and exporting surplus electricity to the grid.
Lab-Grown Alternatives on the Horizon
Given palm oil’s tangled environmental and social footprint, researchers are working on ways to produce similar fats without plantations at all. The most promising route uses precision fermentation, engineering microorganisms such as yeasts and algae to produce lipids that mimic palm oil’s fatty acid profile.
One approach co-cultivates photosynthetic cyanobacteria with yeast, producing lipid blends containing over 40 percent palmitic acid, the signature fatty acid in palm oil.23The Microbe. Recent trends in the production of proteins by precision fermentation for improving the quality and attributes of food: Role of genetic engineering towards next generation of food production – Section: Lipids The oleaginous yeast Yarrowia lipolytica is emerging as a workhorse organism for this kind of microbial oil production because it naturally accumulates large amounts of lipid and is already used safely in food production.24PubMed. Designing the future of food fats: precision fermentation of Yarrowia lipolytica for tailored lipid production Advances in synthetic biology and automated biofoundries are accelerating the development of these microbial oils.25PubMed. Microbial lipids for a sustainable future: the growing potential of synthetic microbial engineering for consumer oils
The scale challenge is immense, though. Global palm oil production runs to tens of millions of tonnes per year, and fermentation-derived oils currently cost many times more per kilogram. For now, lab-grown palm oil replacements are more realistic as ingredients for high-value cosmetics and specialty foods than as substitutes for the bulk commodity that fills tanker ships. Whether costs come down fast enough to make a dent in the broader market is one of the open questions of the next decade in sustainable agriculture.