The only common pulse with complete protein — and real caveats.
Soybeans contain all nine essential amino acids in useful amounts, which almost no other plant food does. They are also far higher in protein and fat than any other bean.
Pulses are the food group with the strongest evidence behind them for
blood sugar and cholesterol. The soluble fibre forms a gel in the gut that slows sugar
absorption and physically carries some cholesterol out of the body.
They also produce a
second-meal effect: a pulse-based lunch measurably flattens the glucose response to
dinner.
Per 100g dry. Cooked pulses are roughly a third of these values by weight.
Based on the nutrients and fibre this food supplies. These are supporting foods, not treatments.
Soak overnight and throw the water away. The compounds that cause gas
leach into it.
Salt at the end. Salting early toughens the
skins.
Build up slowly. Going from no pulses to daily pulses will cause
trouble; your gut bacteria adapt over two to three weeks.
Add asafoetida, cumin
or ginger — every pulse-eating culture independently arrived at a carminative
spice.
The soluble fibre in pulses forms a viscous gel that slows how fast glucose reaches the
blood and binds bile acids so the liver must pull cholesterol from circulation to replace
them. Both effects are mechanical, which is why they show up so consistently in
trials.
Pulses are also low in methionine while grains are low in lysine, which is why
dal with rice or beans with tortilla became staples across unconnected cultures —
together they form a complete protein.
Thyroid conditions: soy can interfere with absorption of thyroid
medication. Leave several hours between your tablet and a soy-heavy meal, and tell your
doctor.
Soy allergy is common — avoid entirely if
diagnosed.
Kidney disease: pulses are high in potassium and phosphorus, and
protein often needs limiting. This needs your doctor's numbers.
Gout:
pulses contain moderate purines, though plant purines appear far less problematic than those
from meat.
IBS: pulses are high-FODMAP. Small, well-soaked, well-cooked
portions are tolerated better.
This is information, not a prescription. If you are managing a diagnosed condition or taking medication, talk to your doctor before making a large change to your diet.
Nutrition figures on this page come from standard food composition data. These links let you check the numbers and read the underlying research yourself rather than taking our word for it.