Hydrogenated Palm Kernel Oil

About

What it is and where it shows up.

Hydrogenated palm kernel oil (HPKO) is a solid fat derived from the kernel of oil palm fruit (Elaeis guineensis) through catalytic hydrogenation, which saturates carbon-carbon double bonds to produce a stable, high-melting-point fat. It is widely used as a cocoa butter substitute, confectionery fat, and processing aid in bakery and confectionery products due to its texture, shelf stability, and functional melting profile.

Safety summary

The regulatory and scientific consensus.

Fully hydrogenated palm kernel oil, when completely hydrogenated, contains negligible levels of trans fatty acids, unlike partially hydrogenated oils; however, it is high in saturated fatty acids (primarily lauric and myristic acids) which are associated with increased LDL cholesterol and risk of coronary artery disease. Partially hydrogenated variants produce trans fatty acids, which cause inflammation and calcification of arterial cells and are known risk factors for coronary heart disease; WHO recommends trans fatty acid intake be kept below 1% of total dietary energy. No specific ADI has been established for fully hydrogenated palm kernel oil itself, though its saturated fat content means dietary guidance recommends limiting intake.

Regulatory landscape

What food-safety regulators have decided.

Jurisdiction	Status	Note
EFSA (European Food Safety Authority) (European Union)	Restricted	Partially hydrogenated fats are effectively eliminated from food use in Western Europe due to legal trans fatty acid limits in many EU member states. Fully hydrogenated fats (including HPKO) do not contain trans fatty acids in significant quantities and remain permitted; however, EU regulations require labelling of the hydrogenation process on food packaging. The EU Commission has reviewed this as part of potential trans fat legislation.source
FDA (Food and Drug Administration) (United States)	Restricted	FDA's 2015 final determination revoked GRAS status for partially hydrogenated oils (PHOs), effective for most uses from June 18, 2018. Fully hydrogenated palm kernel oil (no trans fat) is not directly banned, but any partially hydrogenated variant is no longer GRAS. Fully hydrogenated form may be used as a food ingredient or via interesterification. PHOs in general are banned as food additives.source
FSSAI (Food Safety and Standards Authority of India) (India)	Approved	Hydrogenated palm kernel oil (HPKO) is approved under FSSAI as a processing aid (lubricant/release agent) for use in confectionery and bakery wares at GMP levels. Application 77/Std/PA/FSSAI/2021 approved on 16.03.2022. FSSAI also regulates trans fatty acid content in partially hydrogenated vegetable oils, with WHO-aligned guidance that TFA intake should not exceed 1% of dietary energy.source

Who should approach with care

Whose guidance would steer them away.

Heart Disease — High saturated fat content raises LDL cholesterol and is directly associated with increased coronary artery disease risk, and any partially hydrogenated form contains trans fats which are among the most potent dietary risk factors for CHD.

Diabetes — Industrial trans fatty acids from hydrogenated oils have been shown to adversely affect blood glucose and insulin metabolism, and high saturated fat intake is associated with worsened insulin resistance.

Hypertension — High dietary saturated fat intake, including from HPKO, is associated with dyslipidaemia and cardiovascular risk elevation which can worsen outcomes in individuals with hypertension.

Pregnancy — Industrial trans fatty acids from partially hydrogenated oils have been linked to adverse outcomes including infertility and systemic inflammation; pregnant individuals are advised to keep trans fat intake as low as possible per WHO guidance.

Children — Dietary guidelines broadly recommend minimising children's intake of saturated and trans fats due to long-term cardiovascular risk; HPKO's high saturated fat load warrants moderation in paediatric diets.

Research citations

The sources behind this verdict.

1FDA. Direct Final Rule to Revoke Use of Partially Hydrogenated Oils in Foods, 2023. fda.gov
2FSSAI. List of product(s)/ingredient(s) applications Approved under Food Safety and Standards (Approval for Non-Specified Food and Food Ingredients) Regulations, 2017, 2023. fssai.gov.in
3IARC. Trans fatty acids from industrial processed foods may be associated with greater risk of developing ovarian cancer, 2020. iarc.who.int
4PubMed. Commercially available alternatives to palm oil, 2016. pmc.ncbi.nlm.nih.gov
5FDA. Final Determination Regarding Partially Hydrogenated Oils (Removing Trans Fat), 2015. fda.gov
6PubMed. The negative effects of hydrogenated trans fats and what to do about them, 2009.

Independently researched6 citations