mufa 14:1

Myristoleic acid (MUFA 14:1) refers to a monounsaturated fatty acid with 14 carbon atoms and a single double bond in its carbon chain. It is a specific type of MUFA (monounsaturated fatty acid) within the broader fatty acid category of lipids. MUFAs are defined by having one unsaturated double bond in their structure, which distinguishes them from saturated fats (no double bonds) and polyunsaturated fatty acids (two or more double bonds). Although the most abundant MUFA in the diet is oleic acid (18:1), myristoleic acid is present in trace amounts in many foods and sometimes concentrated in certain animal fats and dairy products. Scientists use the notation “14:1” to describe myristoleic acid, where “14” denotes the number of carbon atoms and “1” denotes the number of double bonds. Chemically, myristoleic acid belongs to the omega‑5 family of fatty acids and is not considered essential because humans can synthesize MUFAs endogenously through desaturation of saturated fatty acids using desaturase enzymes. MUFAs, including myristoleic acid, are integral components of cell membranes, contributing to membrane fluidity and participating in metabolic pathways that influence lipid metabolism. Most human nutritional research and dietary recommendations, however, focus on total MUFA intake rather than individual MUFA types like myristoleic acid because its relative contribution to total MUFA intake is small compared with other MUFAs such as oleic acid. Myristoleic acid occurs naturally in certain foods. Foods with significant fat content, particularly animal fats, tend to have measurable amounts of MUFA 14:1. In these foods, other fatty acids such as oleic and palmitoleic acids are typically present in much higher concentrations. Dietary intake of MUFAs in general has been associated with improved blood lipid profiles and potential benefits for cardiometabolic markers when substituted for saturated fats. While specific clinical trials focused on myristoleic acid itself are limited, myristoleic acid contributes to the aggregate health effects attributed to monounsaturated fats within overall dietary patterns such as the Mediterranean diet, which is rich in unsaturated fats from plant and animal sources. Thus, understanding myristoleic acid’s place within the broader class of MUFAs helps frame how individual dietary fatty acids contribute to long‑term health outcomes.

Monounsaturated fatty acids (MUFAs), including myristoleic acid (14:1), play diverse roles in human physiology. At the biochemical level, MUFAs serve as key structural components of cell membranes, affecting membrane fluidity, signaling pathways and cellular function. MUFAs also serve as energy substrates, providing 9 calories per gram when oxidized for energy. Although myristoleic acid specifically constitutes only a minor fraction of total MUFA intake in most diets, it is part of the broader set of monounsaturated fats that collectively influence health outcomes. Dietary patterns higher in monounsaturated fats, particularly those that replace saturated fats with MUFAs, are associated with favorable blood lipid profiles. Systematic reviews show that diets rich in MUFAs lower LDL cholesterol, reduce triglycerides and often elevate HDL cholesterol when compared to diets high in saturated fats or carbohydrates. This lipid‑modulating effect is thought to reduce atherogenic lipoproteins and improve overall cardiometabolic risk. For example, the Nutrition Evidence Systematic Review concluded that replacing dietary saturated fatty acids with MUFAs improves intermediate markers associated with both cardiovascular disease (CVD) and type 2 diabetes (T2D), indicating strong evidence for cardiometabolic benefits when MUFAs are consumed in lieu of saturated fats. MUFAs are a prominent feature of the Mediterranean dietary pattern, long studied in cardiovascular research. Large cohort studies, including the PREDIMED trial, observed lower incidence of major cardiovascular events among individuals consuming a Mediterranean diet supplemented with extra‑virgin olive oil — a rich source of MUFAs — compared with control diets. McDonalds et al. and subsequent analyses have linked diets high in unsaturated fats to reduced risk of heart attacks and strokes, although distinguishing the effects of MUFAs from other bioactive components (e.g., polyphenols in olive oil) remains an active research area. Beyond lipids, MUFAs may influence glucose metabolism and insulin sensitivity. Some controlled feeding trials have demonstrated improved glycemic control and insulin responsiveness in individuals with T2D on diets enriched with MUFAs compared with high carbohydrate, low fat diets. Although these effects are modest, they highlight MUFAs’ potential role in metabolic regulation. High intake of MUFAs has also been linked to lower markers of inflammation and oxidative stress in observational studies, though evidence is not uniform. The anti‑inflammatory effects of MUFAs may arise from alterations in lipid mediator profiles and changes in cell signaling pathways related to inflammation. Given the limited specific research on myristoleic acid itself, the health benefits described here should be understood as pertaining to the class of monounsaturated fats, within which myristoleic acid is one component. Nevertheless, including foods that contribute to MUFA intake is consistent with dietary patterns shown to support cardiovascular and metabolic health.

There is no established Recommended Dietary Allowance (RDA) or Adequate Intake (AI) for individual monounsaturated fatty acids such as myristoleic acid (14:1) because dietary guidance focuses on total fat quality and quantity rather than specific fatty acid targets. Official nutrition guidelines, including those from the Dietary Guidelines for Americans, recommend that adults obtain 20% to 35% of total calories from fat, with less than 10% of calories from saturated fats, and emphasize replacing saturated fats with unsaturated fats, particularly MUFAs and polyunsaturated fatty acids (PUFAs). While these guidelines do not set numeric targets for individual MUFAs, they imply that consuming MUFA‑rich foods as part of a balanced dietary pattern supports optimal health. Factors influencing individual needs for unsaturated fats include age, sex, overall health status, physical activity levels and genetic factors affecting lipid metabolism. For example, individuals with dyslipidemia (elevated LDL cholesterol) or type 2 diabetes may benefit more from diets that replace saturated fats with MUFAs, as MUFA intake in these contexts has been associated with improved blood lipid profiles and insulin sensitivity. Undernutrition and very low fat diets risk inadequate intake of essential fatty acids and fat‑soluble vitamins, making balanced dietary fat intake — including unsaturated fats — especially important in populations such as older adults and those with restrictive diets. Healthcare professionals often evaluate total fat intake and lipid profiles rather than measure specific fatty acids like myristoleic acid. Nutritional assessment tools and diet history questionnaires can estimate MUFA intake by analyzing consumption of fats and oils, nuts, seeds, meats and dairy products, which collectively provide the range of fatty acids present in the diet. Ultimately, emphasizing dietary patterns rich in unsaturated fats with whole foods rather than isolated targets for specific fatty acids aligns with the best evidence for chronic disease prevention and overall metabolic health.

Common Forms: Fish oil (source of mixed fatty acids), Algal oil, Mixed MUFA dietary oils

Typical Doses: No isolated MUFA 14:1 supplement dosing established.

When to Take: With meals

Best Form: Natural food sources provide balanced fatty acid profiles.