Safflower oil

A neutral-tasting vegetable oil pressed from safflower seeds; sold as high-linoleic (omega-6) and high-oleic (monounsaturated) varieties.

Should I eat Safflower oil?

On packaged foods, prefer high‑oleic safflower to get mostly monounsaturated fat and fewer oxidation by‑products; if the label doesn’t say “high‑oleic,” assume high‑linoleic and add omega‑3 foods to your diet. Refined oils can carry trace 3‑MCPD/glycidyl esters, so variety in fat sources is wise and extra caution matters for infant formulas.

Summary

Safflower oil shows up in many snacks and dressings and comes in two versions that behave differently in your body. High‑oleic is mainly monounsaturated fat, while high‑linoleic is mainly omega‑6 with almost no omega‑3. That means you may need omega‑3 foods to keep a healthy balance if a product uses the linoleic type. Refining makes the oil neutral but can create small amounts of 3‑MCPD and glycidyl esters; regulators track these and the industry works to reduce them. It contains some vitamin E, but refining lowers it, so think of safflower oil primarily as a fat source, not a vitamin source.

Key Research Benefits

Monounsaturated‑rich, high‑oleic type

High‑oleic safflower is rich in monounsaturated fat and resists oxidation better than high‑linoleic oils. Replacing saturated fat with these fats supports heart‑healthy patterns and reduces breakdown during processing.

Provides essential omega‑6

The linoleic variety supplies linoleic acid (omega‑6), an essential fat your body cannot make. It can help meet essential‑fat needs if your diet is low in nuts and seeds.

Some vitamin E

Safflower oil contributes alpha‑tocopherol (vitamin E). Treat it as a modest contributor, not a primary source.

Key Research Risks

Omega‑6 heavy, few omega‑3s

High‑linoleic safflower is mostly omega‑6 with negligible omega‑3. Relying on it without omega‑3 foods can tilt your fat balance and shift signaling toward more pro‑inflammatory compounds.

Processing‑born contaminants

Refining, especially high‑heat deodorizing, can form 3‑MCPD and glycidyl esters; glycidyl esters can release glycidol, a genotoxic compound. EFSA’s tolerable intake for 3‑MCPD is 0.8 μg/kg/day, so keeping exposure low matters most for infants on formula.

High‑linoleic oxidizes faster

Compared with high‑oleic, the high‑linoleic type breaks down more readily when exposed to heat and air, creating oxidation products. Choosing high‑oleic in heat‑exposed products can reduce this breakdown.

Overview

What is it?

Source: Safflower seeds

Method: Clean, degum, neutralize, bleach, deodorize

Processing Level: 6 / 10

Why is it used?

Purpose: Neutral, unsaturated plant oil that softens texture and carries fat‑soluble flavors.

Commonly found in: protein bars; granola; chips; dressings; mayonnaise

Why manufacturers choose it: It’s bland, stable in high‑oleic form, and cost‑effective with a reliable supply.

Origin

Safflower is one of the oldest cultivated oilseeds, likely domesticated in the Fertile Crescent and South Asia. Its bright orange petals (once prized as a low-cost saffron substitute) made it a medieval dye crop. Modern breeding split the crop into high-linoleic types (rich in omega-6) and high-oleic types (rich in monounsaturated fat) to suit food and industrial uses.

Process: Clean, degum, neutralize, bleach, deodorize

Steps

1. Condition/Crush: Cleaned seed is cracked/flaked to expose kernels.

2. Extract: Oil removed by pressing and/or hexane solvent extraction.

3. Desolventize: Remove residual hexane under heat/vacuum; recover solvent.

4. Degum/Neutralize: Hydrate gums and neutralize free acids with alkali.

5. Bleach: Adsorb pigments/peroxides with bleaching earth/clay.

6. Deodorize: Steam distill under vacuum to strip odors.

7. Optional winterize: Chill/filtration to remove waxes for clarity.

Chemicals

Hexane (solvent extraction)

Sodium hydroxide (neutralization)

Citric or phosphoric acid (degumming)

Bleaching earth (adsorbent)

Steam (deodorization)

Research & Safety

Research Summary

Safflower oil comes in two main types: high‑linoleic (very high in omega‑6 linoleic acid, little omega‑3) and high‑oleic (rich in monounsaturated fat). Analyses of safflower oils show alpha‑tocopherol (vitamin E) as a notable component and document wide differences in fatty‑acid makeup by cultivar. Modern refining—degumming, neutralizing, bleaching, and deodorizing—yields a clean‑tasting oil suitable for many foods, but can reduce some native antioxidants and, at very high temperatures, form small amounts of processing contaminants. Regulators have assessed these contaminants. EFSA’s 2016 opinion highlighted risk at high intakes for 3‑MCPD and flagged glycidyl esters because they release glycidol, a genotoxic carcinogen; in 2018 EFSA updated the tolerable daily intake for 3‑MCPD to 2 µg/kg bw/day. Typical adult exposures are below this level, while worst‑case scenarios in formula‑fed infants can approach or exceed it; manufacturers use mitigation steps to keep levels low. The practical takeaway: choose high‑oleic safflower for better heat and shelf stability, and, if using the high‑linoleic type, balance your diet with omega‑3 sources.

Digestive Effects

For most people, safflower oil is digested like other edible oils and is well tolerated in usual food amounts. Large single servings of any oil may loosen stools or cause mild GI discomfort in sensitive individuals. People with gallbladder disease or fat‑malabsorption disorders may need to moderate all dietary fats, including safflower oil. Unrefined oils retain more flavor and minor compounds that some individuals may find harder to tolerate than highly refined, neutral oils.

Limit Consumption

Infants fed formula have been identified by EFSA as a higher‑exposure group for 3‑MCPD esters and glycidyl esters due to refined oils used in formulas; industry and regulators monitor and mitigate these levels. People with allergies to ragweed‑family plants (e.g., sunflower, ragweed) may rarely react to seeds or unrefined oils; however, highly refined oils contain negligible protein. In the U.S., highly refined oils are exempt from major‑allergen labeling under FALCPA, and safflower is not a Top‑9 allergen. Individuals targeting a higher omega‑3 intake (e.g., during pregnancy or for cardiometabolic goals) should balance linoleic‑type safflower with omega‑3‑rich foods.

Fact Sheet

Regulatory Status

US FDA: Edible vegetable oil (common food); specific GLA-enriched safflower oil (SONOVA/GLASO) has GRAS notice (GRN 652).

EU Status: Permitted as standard edible oil; contaminants (3-MCPD/GE) subject to EFSA opinions and EU limits.

Codex INS: Not an additive (no INS number for plain oil).

JECFA ADI: Not applicable to plain oil; contaminants (3-MCPD) considered separately.

ESG & Sustainability

Environmental Footprint: Annual oilseed; rain-fed in some regions; footprint depends on yield/irrigation—generally comparable to sunflower/canola.

Sustainability: Commodity crop with established supply chains; HO varieties can reduce waste via better stability.

Animal Welfare: Not applicable (plant-derived).

Carbon Footprint: Varies by farming and refining energy; refined oils carry added processing emissions versus cold-pressed grades.

Allergens and Diet

Allergen Status: None

Diet Compatibility: Vegan, Vegetarian, Kosher, Halal, Gluten-free, Dairy-free, Non-GMO

Natural Alternatives

Extra-virgin olive oil

Source: Olives

Processing Level: Light

Common Uses: Dressings, bars (small amounts), roasted snacks

Replacement Benefit: Naturally high in monounsaturated fat and polyphenols with minimal processing.

Why it's not used: Olive oil has stronger flavor and higher cost; safflower is blander and cheaper at scale.

Avocado oil

Source: Avocado pulp

Processing Level: Moderate

Common Uses: Dressings, bars (small amounts), cooking

Replacement Benefit: High in MUFA with some phytosterols; often cold-pressed.

Why it's not used: Avocado oil is pricier and has a characteristic flavor; safflower is a neutral, lower-cost workhorse.

High-oleic sunflower oil

Source: Sunflower seeds

Processing Level: Moderate

Common Uses: Snack bars, chips, roasting

Replacement Benefit: Similar MUFA profile and stability; widely available non-GMO options.

Why it's not used: Safflower can be slightly lighter in flavor and competitive in price depending on crop year.

Citations

The composition of safflower seed

1966-01-01

Applewhite TH • Springer

Fatty acid composition and tocopherol profiles of safflower oils

2015-01-01

Matthäus B, Özcan MM • Taylor & Francis

USDA FoodData Central (linoleic safflower oil entry)

2024-01-01

USDA • USDA ARS

Processing Edible Oils

2025-08-19

Penn State Extension • Penn State Extension

Risks for human health related to 3- and 2-MCPD and glycidyl esters in food

2016-05-03

EFSA CONTAM Panel • EFSA Journal

Revised safe intake for 3-MCPD in vegetable oils and food

2018-01-10

EFSA • EFSA News

Properties of High Oleic Seed Oils

2020-12-01

Oklahoma State University • OSU Extension

Food Allergen Labeling and Consumer Protection Act (FALCPA)

2022-11-29

U.S. FDA • FDA

Alpha-Linolenic and Linoleic Fatty Acids in the Vegan Diet

2019-11-07

Burns-Whitmore B, et al. • Nutrients (NIH PMC)

Refining Vegetable Oils: Chemical and Physical Refining

2022-01-15

Gharby S, Harhar H • Frontiers in Nutrition (NIH PMC)