A cup of cooked beans gives about 15 g of protein and 13 g of fibre.
Daily legume eaters show lower cholesterol and steadier blood sugar in controlled trials.
Never eat kidney beans raw or undercooked. They carry a toxin that boiling destroys.
Red kidney beans, white beans, pinto, black-eyed. Iran adopted the New World bean centuries ago and made it its own. Ghormeh sabzi, the national stew, is built on red kidney beans. Lubia polo layers them with rice and lamb. Every ash starts with a soaking bowl. Beans are cheap, keep for a year in a jar, and carry more protein and fibre per rial than almost anything else in the pantry.
Known to botanists as Phaseolus vulgaris and relatives.
Chapter 2 of 15
In Persian Life
Ghormeh sabzi with its red beans is the dish Iranians abroad dream about. Lubia polo, rice layered with beans, tomato and lamb, is the weekday favourite. And the shared pot of abgoosht, beans and chickpeas mashed with meat, has fed workers and kings alike for centuries.
Persian temperament: Warm & Dry (1st degree). Building and strengthening in the classical reading. Long cooking and warming spices make them kinder to weak digestion.
Chapter 3 of 15
In Persian Life: In the Household
Hakims class beans as warm and dry: building and strengthening, but heavy if the digestion is weak. The old advice is to cook them long, and to eat them with warming spices such as cumin and golpar, which is exactly what the kitchen already does.
Beans reached Iran from the Americas through the Ottoman trade and were adopted fast, joining the older chickpea, lentil and fava.
Abgoosht, the bean and meat pottage, is documented in Persian cities for centuries as the food of the bazaar.
Ghormeh sabzi took its modern bean-bearing form after the kidney bean arrived, and never looked back.
Chapter 4 of 15
What It Contains
Primary compounds
Resistant starch survives cooking and cooling, and gut bacteria turn it into butyrate, the colon's preferred fuel.
Phaseolamin, a bean protein, mildly slows starch digestion, which is part of why beans blunt blood sugar.
Folate runs high: a cup covers well over half the daily need.
The red and black skins carry anthocyanins (the natural colour pigments that make fruit red, purple or blue), the same pigment family as in berries.
Chapter 5 of 15
What It Contains: Vitamins
Vitamins
Thiamin (B1), Vitamin B6
Other notable constituents
Protein: About 15 g per cooked cup · Fiber: About 13 g per cooked cup · Minerals: Iron, Magnesium, Potassium, Manganese, Copper
Antioxidants: Polyphenols (protective plant compounds) · Notable: Cooled cooked beans form resistant starch, which reheats keep
Chapter 6 of 15
What Studies in People Show
What studies in people show
A daily serving of legumes lowered LDL (the harmful type of cholesterol) cholesterol by about 5 percent in a meta-analysis (a study that pools the results of many trials) of controlled trials.Moderate evidence
Higher legume intake was associated with lower heart and blood vessel disease risk in pooled cohorts.Moderate evidence
Legume consumption improved glycaemic markers in people with type 2 diabetes in randomised trials.Moderate evidence
Chapter 7 of 15
Using It in the Kitchen
Lunch. A bean stew at midday carries you to dinner without a snack.
In the kitchen: overnight soak, discard the water, boil hard for 10 minutes, then simmer gently. A pressure cooker cuts the simmer to about 25 minutes from soaked.
Salt the pot near the end; early salt can toughen the skins.
For salads, cook just until tender and cool them in their liquid so they don't split.
Soak overnight, pour off the soak water, and simmer in fresh water 1 to 2 hours until creamy.
Cook a large batch and freeze in two-cup portions for the month.
Chapter 8 of 15
Using It in the Kitchen: Other Ways to Use It
Season the pot with turmeric and cumin; the tradition of pairing beans with warming spices has digestive sense behind it.
Rinse canned beans to wash off a third of the salt.
Soak a bowl of beans overnight and simmer a big batch; freeze it in portions.
Add a cup of cooked beans to rice, salad or soup and the meal gains protein for pennies.
Chapter 9 of 15
Why It Matters
The longest-lived populations in the world all eat beans daily. The Persian kitchen already does, in stews and ashes. The habit is worth protecting, and worth copying if it isn't yours yet.
Protein gets harder to eat enough of with age, and beans answer that cheaply and softly. Their fibre handles the two complaints of later decades, sluggish gut and rising cholesterol, and their slow sugar suits the metabolism of anyone past sixty.
The protein-fibre combination keeps you full for hours, which is why bean eaters tend to weigh less.
Soluble fibre in beans lowers LDL cholesterol measurably in feeding trials.
Beans release sugar slowly, so they steady blood glucose rather than spiking it.
Chapter 10 of 15
Who Should Be Careful
General caution:
Raw or undercooked kidney beans contain phytohaemagglutinin, a toxin that causes severe vomiting. Boil soaked beans hard for 10 minutes before any slow cooking. Slow cookers alone may not get hot enough.
General caution:
If beans are new to your diet, start with small portions. The gas fades as your gut adapts over a few weeks.
General caution:
Canned beans are salty. Rinse them, or choose no-salt tins.
General caution:
G6PD deficiency applies to fava beans specifically, not to common beans.
Allergy:
Severe bean allergy, which is uncommon.
Chapter 11 of 15
Pregnancy, Children and Older Adults
Pregnancy and breastfeeding
Pregnancy and breastfeeding:
One of the best pregnancy foods on the shelf: folate, iron and protein in one pot. Cook them fully, and rinse canned beans to keep the sodium down.
Children
Children:
Mashed beans spread on sangak is a good early food once legumes are introduced without reaction. Whole beans are a choking shape for toddlers; mash or halve them until age four.
Older adults
Older adults:
Soft, cheap, protein-rich and forgiving to cook in bulk. For an older person with a small appetite, half a cup of beans in soup does more than a plate of white rice. Soaking and long cooking make them easy to digest.
Chapter 12 of 15
What It Goes With
Grain:
Rice
Lubia polo. Grain and bean together make a complete protein. And the rice carries the tomato and saffron.
Spice:
Turmeric
The standard bean-pot spice across Asia, with a long folk record of easing the digestion of legumes.
Chapter 13 of 15
What It Goes With: More Pairings
Spice:
Cumin
The other bean spice. Mexican, Indian and Persian kitchens reached for it independently, which tells you something.
Pairing:
Onion
Fried onion is the base of nearly every Persian bean dish, and raw onion is the side served with abgoosht.
Chapter 14 of 15
Through the Year
Spring:
Spring
Beans are a stored crop, available all year. Spring is when fresh green relatives, like fava, briefly join the table.
Summer:
Summer
Lighter use: cold bean salads with herbs, and lubia polo when the kitchen can bear the stove.
Autumn:
Autumn
Stew season begins. Ghormeh sabzi returns to its weekly place.
Winter:
Winter
Abgoosht and ash season. The bean pot is the winter hearth of the Persian kitchen.
Chapter 15 of 15
Questions People Ask
Are canned beans as good as dried?
Nutritionally, close. Rinse them to remove a third of the salt, and they earn their place on a busy night.
Why do beans give me gas?
Their oligosaccharides are fermented by gut bacteria. Soaking, rinsing and regular small servings reduce it, and the effect fades as your gut adapts.
Which bean for ghormeh sabzi?
Red kidney beans are the classic. Some families use pinto. Either works; the herb balance matters more.
