Butter Beans

Food · Legume · Food, Typed Supps

A soft, buttery bean that must always be cooked — never eaten raw.

Stage by stage

Intake (Chewing softens the bean): Chewing breaks up the cooked bean’s starchy structure.
Stomach (Protein and starch digestion starts): Stomach acid and enzymes begin breaking down the bean’s protein and starch.
Small intestine (Fiber and nutrients absorbed): Fiber, folate, and vitamin C are absorbed; resistant starch and fiber pass onward.
Bloodstream & gut (Feeds digestion and energy): Starch provides steady energy while fiber feeds gut bacteria in the colon.

Timing

Any meal, but only once fully cooked — raw or undercooked butter beans are not safe to eat.

Time to effect

Days: The fiber supports more regular digestion within a few days of consistent intake.

Allergens

None of the fourteen major allergens. Derived from what this food is, not from a product label.

Eating patterns

Fits: Vegan, Vegetarian, Pescatarian, Halal, Kosher, Keto, Gluten-free.

Satiety

The satiety index is measured on 240 kcal servings. At 25 kcal per 100 g that is 964 g of this, which is not a serving anyone eats — so the index has nothing to say about it.

Environmental footprint

1 kg CO2e and 397 litres of freshwater per kg, matched to "Peas" in Poore & Nemecek (2018), Science 360.

Cost band

Cheap — roughly £2.2 per kg, as a band midpoint rather than a price.

Key nutrients

Fiber
Folate
Vitamin C
Plant protein

Nutrition per 100g

Calories: 24.9
Protein: 2.3g
Carbohydrate: 2.3g
of which sugars: 1.8g
Fat: 0.2g
of which saturated: 0g
Fibre: 2.3g
Sodium: 3mg

Food vs. supplement

No supplement replicates the combination of slow-digesting starch, plant protein, and fiber a legume like this provides together.

Kitchen tip

Soak dried beans overnight and boil for at least 10 minutes at a full rolling boil before eating — this fully breaks down the natural toxins raw beans contain.

Common myth

“Beans are beans — a few minutes of cooking is just for texture.” In reality: Raw lima/butter beans genuinely contain cyanide-releasing compounds. Full cooking, not just soaking, is required to make them safe, and undercooking has caused real poisoning cases.