Sacha Inchi

Plukenetia volubilis L.
Evidence Level
Limited
2 Clinical Trials
4 Documented Benefits
2/5 Evidence Score

Sacha inchi, the Amazonian 'Inca peanut,' is the seed of Plukenetia volubilis, a vine traditionally cultivated by indigenous communities in Peru, Ecuador, and surrounding regions. The roasted seed is consumed as a snack while cold-pressed sacha inchi oil is rich in alpha-linolenic acid, the plant-based omega-3 fatty acid that the body converts into the longer-chain omega-3s EPA and DHA only to a limited extent, so it is not nutritionally equivalent to marine omega-3 from fish or algal oil. The oil typically contains more than 45 percent ALA along with significant linoleic acid and a natural complement of tocopherols. Direct human trial evidence is very limited. The lipid data cited here come from a single small trial in 24 adults with diagnosed hyperlipoproteinemia, in which sacha inchi oil was associated with lower mean total cholesterol and non-esterified fatty acids and higher HDL; that describes what happened in one small trial in a diagnosed patient population and does not establish an effect in healthy people. A separate study gave a single oral dose and tracked blood fatty acids, showing that alpha-linolenic acid from the oil is absorbed and modestly raises plasma DHA, but it measured absorption and tolerability rather than any health outcome and reported gastrointestinal intolerance including nausea in some participants. It is best framed as a plant-based omega-3 source for those who avoid fish, with effects that are biologically plausible and supported by mechanism but still under-studied at the trial level.

Studied Dose Oil: 5-10 mL/day (~2-5 g alpha-linolenic acid/day); seeds: 20-30 g portions.
Active Compound Alpha-linolenic acid (>45% of total fatty acids), linoleic acid, oleic acid; plus seed protein, tocopherols, minor phytosterols.

Benefits

Provides a plant-based omega-3 source

Cold-pressed sacha inchi oil is one of the most concentrated dietary sources of alpha-linolenic acid, making it a useful plant-based omega-3 option for people who avoid fish or fish oil, and providing a precursor that the body converts to longer-chain omega-3s only inefficiently. Because that conversion is limited, especially for DHA, sacha inchi oil is not interchangeable with fish or algal oil, which supply EPA and DHA directly.

Helps support a healthy lipid profile

In one small trial, 24 adults with diagnosed hyperlipoproteinemia who took 5 mL or 10 mL of sacha inchi oil daily for four months had lower mean total cholesterol and non-esterified fatty acids and higher HDL cholesterol, and the higher dose was also associated with a rise in insulin. That is a description of what happened in a single small trial in a diagnosed patient population, not evidence that sacha inchi oil lowers cholesterol in generally healthy people. Sacha inchi oil is best used as one unsaturated-fat choice within an overall heart-healthy dietary pattern.

Supports normal essential fatty acid intake

Sacha inchi seeds and oil provide both alpha-linolenic acid and linoleic acid in proportions favoring omega-3, helping support adequate essential fatty acid intake in diets that may otherwise be skewed toward omega-6 sources.

Contributes plant protein and tocopherols

Whole roasted sacha inchi seeds supply plant protein along with tocopherols and minor antioxidant constituents, contributing to nutrient diversity and overall antioxidant support when used as a snack or recipe ingredient.

Mechanism of action

1

ALA precursor for EPA and DHA

Alpha-linolenic acid from sacha inchi oil undergoes partial elongation and desaturation in the liver to produce EPA and small amounts of DHA, providing precursor supply for the omega-3 long-chain pathway when fish-derived sources are absent.

2

Modulation of lipid metabolism and lipoproteins

Diets enriched in ALA have been shown to reduce VLDL secretion and improve lipoprotein profiles, providing a mechanism for the modest reductions in total cholesterol and increases in HDL reported in the single small sacha inchi oil trial cited here.

3

Anti-inflammatory eicosanoid signaling

EPA and oxylipins derived from ALA competition with arachidonic acid pathways generate less pro-inflammatory eicosanoids and contribute to resolving lipid mediators, providing a mechanistic basis for cardiovascular and inflammation-related effects of plant-based omega-3 intake.

Clinical trials

1
Sacha inchi oil in hyperlipoproteinemia

Open-label pilot study of sacha inchi oil suspension orally (5 mL or 10 mL doses) for 4 months in adults with elevated cholesterol (Garmendia, Pando, Ronceros; Rev Peru Med Exp Salud Publica).

24 adults aged 35–75 with hyperlipoproteinemia.

Sacha inchi oil consumption reduced mean total cholesterol and non-esterified fatty acids and increased HDL cholesterol in both dose subgroups, with the higher 10 mL dose also associated with rises in insulin. Because the study enrolled just 24 people and was conducted only in adults with a diagnosed lipid disorder, the results are preliminary and cannot establish that sacha inchi oil changes cholesterol in the general population.

2
Acute fatty acid pharmacokinetics in adults

Crossover study of single oral doses of sacha inchi oil versus sunflower oil with plasma fatty acid measurements over 24 hours (Gonzales et al., Toxicology Mechanisms and Methods).

18 healthy human adult volunteers.

Sacha inchi oil elevated plasma alpha-linolenic acid and DHA, with peak ALA at 2 hours and higher concentrations in female participants, demonstrating that ALA from sacha inchi oil is absorbed and modestly elevates long-chain omega-3 in plasma compared with sunflower oil. This was a single-dose pharmacokinetic and tolerability study rather than an efficacy trial: it tracked blood fatty acid levels over 24 hours and did not measure any health outcome. The authors also recorded gastrointestinal intolerance, including nausea, in some participants after the oil.

Side effects and drug interactions

Common Potential side effects

Gastrointestinal upset, including soft stools and nausea, is the most commonly reported issue and was documented in the cited human single-dose study of sacha inchi oil. Start with a small amount taken with food and increase gradually; reduce the dose or stop if nausea or loose stools persist.
Fishy or grassy aftertaste from oxidized oil suggests improper storage and should be avoided.
Allergic-type reactions to Plukenetia volubilis seed protein are uncommon but possible.
High caloric density of oil means portion control is important for weight management.
Quality varies between brands; choose cold-pressed, properly stored sacha inchi oil.

Important Drug interactions

Anticoagulants such as warfarin: theoretical additive bleeding risk via omega-3 platelet effects.
Antihypertensive medications: omega-3-rich oils may modestly lower blood pressure; monitor.
Antidiabetic medications: sacha inchi oil may influence glucose and insulin handling; monitor.
Other omega-3 supplements: avoid stacking high doses without medical supervision.

Frequently asked questions about Sacha Inchi

What is sacha inchi?

Sacha inchi (Inca peanut) is a Peruvian seed rich in plant omega-3 (ALA), protein, and vitamin E. Its oil and protein powder are used as plant-based sources of omega-3s and nutrition.

What is sacha inchi good for?

It is used as a plant-based source of the omega-3 fatty acid ALA, along with seed protein and vitamin E. Human research is limited to one small trial in adults with diagnosed hyperlipoproteinemia, which reported lower total cholesterol and higher HDL, and a single-dose study showing the oil's ALA is absorbed. Because the body converts ALA to EPA and DHA only to a limited extent, sacha inchi is not a substitute for fish or algal omega-3. The oil is used like flax oil and the protein powder as a vegan protein option, as part of an overall nutrient-dense diet.

How much sacha inchi should I take?

The oil is used like other omega-3 culinary oils (a teaspoon or two, not for high-heat cooking); the protein powder follows standard protein serving sizes. Follow product labeling.

Is sacha inchi safe?

It is generally well tolerated as a food, though the cited human study of the oil reported gastrointestinal upset and nausea in some participants, so it is sensible to start with a small amount taken with food. As with introducing any new seed, those with nut or seed allergies should be cautious. The oil provides ALA, which the body converts to EPA and DHA only modestly.

What is Sacha Inchi used for?

Sacha Inchi is researched primarily for Cardiovascular. Cold-pressed sacha inchi oil is one of the most concentrated dietary sources of alpha-linolenic acid, making it a useful plant-based omega-3 option for people who avoid fish or fish oil, and providing a precursor that the body converts to l…

What is the recommended dosage of Sacha Inchi?

The clinically studied dose is Oil: 5-10 mL/day (~2-5 g alpha-linolenic acid/day); seeds: 20-30 g portions. Always follow the product label and check with a healthcare provider for personal advice.

Is Sacha Inchi safe, and does it have side effects?

For most healthy adults, Sacha Inchi is well tolerated at studied doses. Reported effects can include: Gastrointestinal upset, including soft stools and nausea, is the most commonly reported issue and was documented in the cited human single-dose study of sacha inchi oil. It may also interact with some medications. Sacha Inchi is not right for everyone, so check with a healthcare provider first if you are pregnant or breastfeeding, have a medical condition, or take prescription medication.

Does Sacha Inchi interact with any medications?

Possible interactions include: Anticoagulants such as warfarin: theoretical additive bleeding risk via omega-3 platelet effects. Antihypertensive medications: omega-3-rich oils may modestly lower blood pressure; monitor. If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for Sacha Inchi?

NutraSmarts rates the evidence for Sacha Inchi as Limited (2 out of 5). It is backed by 2 clinical trials and 2 cited references summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(2 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Garmendia F, Pando R, Ronceros G. Effect of sacha inchi oil (plukenetia volúbilis l) on the lipid profile of patients with hyperlipoproteinemia. Revista Peruana de Medicina Experimental y Salud Publica. 2011;Rev Peru Med Exp Salud Publica. 2011 Dec;28(4):628-32..PubMedUsed to support: Small pilot study (24 adults) in patients with diagnosed hyperlipoproteinemia, reporting reduced total cholesterol and non-esterified fatty acids and increased HDL in that patient population; preliminary and not generalizable to healthy adults.
  2. Gonzales GF, Gonzales C, Villegas L. Exposure of fatty acids after a single oral administration of sacha inchi (Plukenetia volubilis L.) and sunflower oil in human adult subjects. Toxicology Mechanisms and Methods. 2014;Toxicol Mech Methods. 2014 Jan;24(1):60-69..PubMedUsed to support: Single-dose crossover pharmacokinetic and tolerability study (not an efficacy trial) showing that one oral dose of sacha inchi oil increased plasma alpha-linolenic acid and DHA in healthy adults compared with sunflower oil; the report also documented gastrointestinal intolerance, including nausea, after the oil.