Lupini Beans (Lupins): Nutrients, What Research Shows and Safety
Lupini beans (lupins) as a food: USDA nutrient values, lupin allergy and its link to peanut allergy, bitter alkaloids and debittering, and what research shows.
Content last updated . This page has not been medically reviewed.
Lupini beans, or lupins, are the seeds of Lupinus albus (white lupin) and related species such as Lupinus angustifolius. They are legumes in the same plant family as peanuts. [1] Lupini are a traditional Mediterranean snack, sold debittered and brined in jars, and lupin flour and protein are used in baked goods, pasta and gluten-free products. [1] This page covers the whole bean as food and puts the two main safety points first: allergy and natural bitter alkaloids.
Read this first
- Allergy can be severe. The FDA says lupin allergic reactions can be severe and life-threatening, with the highest risk in people allergic to peanut, though some people without peanut allergy react too. [1] For trouble breathing or swelling of the face or throat, call 911 (or your local emergency number). [2]
- Labeling. In the US lupin is not one of the eight major allergens, but it must be named in the ingredient list. In Europe, lupin-containing products are labeled as a potential allergen. [3] Lupin flour can turn up in baked goods, pasta and gluten-free foods. [1]
- Bitter alkaloids need to be removed. Lupin seeds contain quinolizidine alkaloids that are toxic. EFSA (2019) found that eating lupin seeds without a debittering step, or debittered seeds that are still high in alkaloids, may be a risk for some consumers. [4] Do not eat dry, raw lupini.
- Evidence in one line: we found no lupin-only trial of heart or blood sugar outcomes in the sources we read. Pooled trials of pulses as a group suggest a small LDL drop. [5]
- Nutrients: per USDA, a cup of cooked lupins has about 52% of the protein Daily Value (25.8 g). [6]
What is in it (USDA values)
The main columns are for lupins, mature seeds, boiled without salt (USDA FoodData Central item 172424, SR Legacy) [6]. The serving is the USDA household portion of 1 cup cooked (166 g). The last column is the same bean dry and uncooked (item 172423) [7]; do not compare it with the cooked columns, because cooking adds water. USDA values are for lupins boiled without salt. Jarred lupini are brined and debittered, and their sodium content is not covered by the USDA item.
| Nutrient | Cooked, per 100 g | Cooked, per 1 cup (166 g) | % Daily Value per cup | Dry (raw), per 100 g |
|---|---|---|---|---|
| Energy | 119 kcal | 198 kcal | no DV | 371 kcal |
| Total fat | 2.92 g | 4.85 g | 6% | 9.74 g |
| Saturated fat | 0.346 g | 0.574 g | 3% | 1.16 g |
| Carbohydrate | 9.88 g | 16.4 g | 6% | 40.4 g |
| Fiber | 2.8 g | 4.65 g | 17% | 18.9 g |
| Protein | 15.6 g | 25.8 g | 52% | 36.2 g |
| Folate (DFE) | 59 mcg | 97.9 mcg | 24% | 355 mcg |
| Manganese | 0.676 mg | 1.12 mg | 49% | 2.38 mg |
| Copper | 0.231 mg | 0.383 mg | 43% | 1.02 mg |
| Thiamin (B1) | 0.134 mg | 0.222 mg | 19% | 0.64 mg |
| Magnesium | 54 mg | 89.6 mg | 21% | 198 mg |
| Phosphorus | 128 mg | 212 mg | 17% | 440 mg |
| Iron | 1.2 mg | 1.99 mg | 11% | 4.36 mg |
| Potassium | 245 mg | 407 mg | 9% | 1013 mg |
| Zinc | 1.38 mg | 2.29 mg | 21% | 4.75 mg |
| Calcium | 51 mg | 84.7 mg | 7% | 176 mg |
| Selenium | 2.6 mcg | 4.32 mcg | 8% | 8.2 mcg |
| Vitamin B6 | 0.009 mg | 0.015 mg | 1% | 0.357 mg |
| Sodium | 4 mg | 6.64 mg | 0% | 15 mg |
% Daily Value uses the FDA 2016 Daily Values; the cup column is the 100 g value multiplied by 1.66. USDA lists no Daily Value for energy or sugars. Values vary with variety, growing place and cooking time. A dash means USDA has no value.
Plant compounds: the one measured in lupin seeds by the sources we read is the group of quinolizidine alkaloids, with lupanine the main one in an Italian market study. Dry lupin samples averaged 13,676 mg per kg, flours 253, brined lupins 86.1 and ready-to-use products 70.3. [8] These alkaloids are a toxic natural compound, not a benefit. The main lupin allergen in one study was gamma-conglutin. [9]
What research says
| Health goal | What the sources found | Strength of evidence | What was studied |
|---|---|---|---|
| Lupin allergy | In a small Chilean study of people with peanut allergy, 44% were confirmed to have lupin allergy by a food challenge; anaphylaxis was the most common reaction, with a smallest reacting dose of 1 g of lupin flour. [9] ASCIA says lupin allergens resist boiling and microwaving, and that reactions can happen in people with no prior food allergy. [10] | Established (documented risk) | Allergy clinic studies and expert summary |
| Peanut cross-reactivity | ASCIA reports that in a French study 14.5% of adults and 17% of children with peanut allergy were cross-sensitised to lupin, while in a UK study about 5% of people with peanut allergy had symptoms on a lupin challenge. Studies disagree. [10] | Mixed (studies disagree on how often) | Allergy clinic studies |
| Alkaloid toxicity | EFSA says information on the toxicity of these alkaloids in animals and humans is limited. In its exposure scenarios the margin of safety may indicate a risk for some consumers, for example when seeds are eaten without debittering. [4] Case reports describe cholinergic toxicity and cramp-fasciculation syndrome after food made from lupin seed. [11] | Established as a risk when bitter seeds are not debittered | Risk assessment and case reports |
| LDL cholesterol (pulses as a group) | A pooled analysis of 26 randomized trials (1,037 people) found pulse diets, at a median of 130 g a day, lowered LDL by 0.17 mmol/L. [5] We did not read a lupin-only result. | Promising but limited for pulses as a group; Insufficient evidence for lupin alone | Mixed pulses |
| Blood sugar and weight | Pooled trials of pulses found lower glucose measures with large differences between trials, [12] and a small extra weight loss of 0.34 kg over about 6 weeks. [13] No lupin-only result was read. | Insufficient evidence for lupin alone | Mixed pulses |
| Extracted pulse proteins | A pooled analysis of 7 trials (453 people) found extracted pulse proteins at a median of 35 g a day lowered LDL by 0.23 mmol/L. [14] This is a protein product, not whole lupini beans, and the abstract does not say which pulses were used. | Promising but limited (a different product) | Isolated protein, median 4 weeks |
Eaten as food vs taken as a protein or flour. Allergy and alkaloid findings relate to lupin in any form, including flour. The trials of LDL used cooked pulses in general or isolated proteins, not jarred lupini. Observational findings show an association, not proof. The abstracts we read did not state who funded the work.
How much is a normal serving
The USDA household portion is 1 cup of cooked lupins (166 g), with about 198 kcal, 25.8 g of protein and 4.65 g of fiber (see the table). [6] The NHS counts 80 g of beans and pulses as one portion and says they count only once a day toward 5 A DAY. [15] This is information, not a prescription. We did not read a source on how many jarred lupini are safe to eat; see the alkaloid point below.
Safety, allergy and medicines
- Lupin allergy. The FDA says reactions can be severe and life-threatening. [1] ASCIA says symptoms range from lip or facial swelling, hives, a tingling mouth, belly pain and vomiting to breathing difficulty, throat swelling and collapse. [10] If you think you are reacting to lupin, the FDA says to stop eating the food and get medical care or advice right away. [1]
- Peanut allergy and lupin. Lupin is a legume related to peanut and soybean, and the main lupin allergen resembles the main peanut allergen. [10] Studies disagree on how often people with peanut allergy also react. [10] [9] Peanut is a legume, not a tree nut; see peanuts and ask an allergist if you are allergic to peanut.
- Hidden lupin. FDA notes lupin flour and protein are used in baked goods, pasta and gluten-free products. [1] Check ingredient lists for "lupin", "lupine" or "lupini" by name. [1]
- Alkaloid poisoning. EFSA says acute effects of the reference alkaloid sparteine include anticholinergic effects and changes in the heart's electrical conduction, and that risk may exist when seeds are not debittered or are high in alkaloids. [4] Case reports link lupin-seed food to cholinergic toxicity and cramp-fasciculation syndrome; with chronic intake some motor problems were self-limiting but not fully reversible. [11]
- Pregnancy, breastfeeding, children, medicines: we did not read a source on lupini in pregnancy or for children, or on medicine interactions. See foods in pregnancy and ask a clinician. EFSA's concern about alkaloids applies to all consumers. [4]
- Kidney disease: USDA lists 407 mg of potassium (9% of the Daily Value) and 212 mg of phosphorus per cup cooked. [6] We did not read a source on lupin and kidney disease limits. See foods, kidney disease, potassium and oxalates.
- Gas: fermentable fibers in legumes can cause gas. [16]
Choosing, storing and food safety
- Buy products that say they are debittered. In an Italian market study, brined lupins averaged 86.1 mg per kg of alkaloids against 13,676 mg per kg in dry lupins. [8]
- Home debittering of dry seeds can fall short. In a lab test, debittering cut alkaloids by 94 to 99%, but seeds that started high still kept levels above commonly accepted safety limits, and the EU has no harmonized maximum levels. [8]
- Read labels for lupin in baked goods, pasta and gluten-free products. [3]
- We did not read a source on the sodium in jarred lupini or on storing opened jars; see dried vs canned beans, soaking and sodium.
Related pages
Health connections for Lupini Beans (Lupins)
What research links to eating or drinking this food, and how strong the evidence is. Many studies are observational or use juice, powder, oil or extracts rather than the food as eaten; each card says which.
Lupin protein, fiber and minerals
Established roleA cup of cooked lupins gives about 52% of the protein Daily Value, 49% of manganese, 43% of copper and 17% of fiber, per USDA data.
Supplements: Food source; no claim that lupins prevent deficiency diseases.
Beans and LDL cholesterol (pulses as a group)
Clinically supportedPooled randomized trials found that about one serving a day of pulses lowered LDL cholesterol by 0.17 mmol/L. No lupin-only result was read.
Supplements: LDL as a measured outcome for pulses as a group, not for lupin alone.
Beans and blood sugar
Preliminary or mixedPooled trials of pulses found lower fasting glucose and insulin and lower after-meal glucose than wheat or white rice, but results varied; no lupin-only result.
Supplements: Pulses as a group.
Extracted pulse proteins and LDL
Preliminary or mixedSeven trials of extracted pulse proteins (median 35 g a day) lowered LDL by 0.23 mmol/L.
Supplements: Isolated protein, not whole lupini.
Gas and digestion
Preliminary or mixedFermentable fibers in legumes can cause gas and bloating in some people.
Supplements: Legumes in general.
Connected topics
Open a group to see how each topic connects and how strong the evidence is.
Body systems (1)
- Immune SystemDocumented risk
Lupin can trigger IgE-mediated food allergy, including anaphylaxis, especially in people with peanut allergy.
Body parts (1)
- Immune SystemDocumented risk
Lupin allergy is an immune reaction; avoidance is the only prevention.
Root causes (1)
- Nutrient DeficiencyEstablished role
Cooked lupins are a source of protein, manganese, copper and folate per USDA; a food source, not a treatment for deficiency.
Conditions & symptoms (3)
- AnaphylaxisDocumented risk
Anaphylaxis was the most common reaction in a small study of lupin challenges; it is a medical emergency, call 911.
- Food AllergyDocumented risk
Lupin allergy can be severe; people with peanut allergy are at the highest risk.
- FlatulencePreliminary or mixed
Legumes contain fermentable fibers that cause gas in some people.
Documented risks and interactions (3)
- Lupin allergy. Lupin can cause allergic reactions, including anaphylaxis. People with peanut allergy are at the highest risk, but people without peanut allergy can react too. For trouble breathing or swelling of the face or throat, call 911.
- Lupin and peanut cross-reactivity. Studies disagree on how often people with peanut allergy also react to lupin: from about 5% to 44% in the studies read.
- Quinolizidine alkaloids and debittering. Raw lupin seeds contain toxic quinolizidine alkaloids. Debittering lowers them, but seeds that start high can stay above safety thresholds.
Frequently asked questions
Are lupini beans safe if I am allergic to peanuts?
Not necessarily. Lupin is a legume in the same plant family as peanut, and the FDA says people with peanut allergy are at the highest risk of reacting. [1] Studies differ on how often this happens. [10] Ask an allergist.
Why are lupini beans soaked in brine?
Raw lupin seeds contain bitter, toxic alkaloids. Debittering lowers them, and brined ready-to-eat lupins had far less than dry seeds in an Italian study. [8]
Are lupini beans gluten-free?
We did not read a source stating the gluten status of lupin. The FDA notes lupin flour is used in gluten-free products. [1] Check the label of a specific product for gluten statements.
Do lupini beans lower cholesterol?
Pooled trials of pulses as a group found a small LDL drop of 0.17 mmol/L. [5] We read no lupin-only trial, so we cannot say.
Is lupin flour a major allergen in the US?
Lupin is not one of the eight major allergens that require special labeling, but it must be named in the ingredient list. [1]
References
- U.S. Food and Drug Administration. Lupin and Allergenicity: Frequently Asked Questions. Content current as of 2018-01-04. Read 2026-10-24.
- MedlinePlus. Food allergy. Read 2026-10-24.
- U.S. Food and Drug Administration. Consumer Advice on Lupin. Content current as of 2018-01-04. Read 2026-10-24.
- EFSA Panel on Contaminants in the Food Chain. Scientific opinion on the risks for animal and human health related to the presence of quinolizidine alkaloids in feed and food, in particular in lupins and lupin-derived products. EFSA Journal 2019 (abstract read via Europe PMC). Read 2026-10-24.
- Ha V et al. Effect of dietary pulse intake on established therapeutic lipid targets for cardiovascular risk reduction: a systematic review and meta-analysis of randomized controlled trials. CMAJ 2014 (abstract read via Europe PMC). Read 2026-10-24.
- U.S. Department of Agriculture. FoodData Central: Lupins, mature seeds, cooked, boiled, without salt (SR Legacy, FDC 172424). April 2018 release. Read 2026-10-24.
- U.S. Department of Agriculture. FoodData Central: Lupins, mature seeds, raw (SR Legacy, FDC 172423). April 2018 release. Read 2026-10-24.
- Peloso M et al. Quinolizidine Alkaloid Profiles in Lupin-Based Products: Monitoring of the Italian Retail Market and Efficacy of the Debittering Process. Foods 2026 (abstract read via Europe PMC). Read 2026-10-24.
- Aguilera-Insunza R et al. High prevalence of lupin allergy among patients with peanut allergy: Identification of gamma-conglutin as major allergen. 2023 (abstract read via Europe PMC). Read 2026-10-24.
- ASCIA. Lupin food allergy. Content updated December 2015. Read 2026-10-24.
- Lagrange E et al. Cramp-Fasciculation Syndrome Associated with Natural and Added Chemicals in Popular Food Items. 2024 (abstract read via Europe PMC). Read 2026-10-24.
- Sievenpiper JL et al. Effect of non-oil-seed pulses on glycaemic control: a systematic review and meta-analysis of randomised controlled experimental trials in people with and without diabetes. 2009 (abstract read via Europe PMC). Read 2026-10-24.
- Kim SJ et al. Effects of dietary pulse consumption on body weight: a systematic review and meta-analysis of randomized controlled trials. 2016 (abstract read via Europe PMC). Read 2026-10-24.
- Yang S et al. Effects of Extracted Pulse Proteins on Lipid Targets for Cardiovascular Risk Reduction: Systematic Review and Meta-Analysis of Randomized Controlled Trials. 2024 (abstract read via Europe PMC). Read 2026-10-24.
- NHS. 5 A DAY: what counts?. Read 2026-10-24.
- Harvard T.H. Chan School of Public Health. The Nutrition Source: Legumes. No update date shown on the page. Read 2026-10-24.