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Best Beans for PCOS? 7 Types Compared
Short answer: Among the 7 beans and legumes compared here, Kidney Beans and Lentils carry the lowest glycemic load per typical serving and Pinto Beans the highest. Kidney Beans and Black Beans are rated a good fit for all four PCOS subtypes. No single bean or legume is right for everyone with PCOS: serving size, preparation and your subtype change the picture, so each one is broken down below.
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- Kidney Beans — GI 24, glycemic load 6 per 150g cooked (~3/4 cup) · 10 g fiber · 13 g protein · full breakdown
- Lentils — GI 32, glycemic load 6 per 150g cooked (~3/4 cup) · 12 g fiber · 13.5 g protein · full breakdown
- Black Beans — GI 30, glycemic load 7 per 150g cooked (~3/4 cup) · 13 g fiber · 13 g protein · full breakdown
- Baked Beans — GI 40, glycemic load 8 per 150g canned baked beans in tomato sauce (~2/3 cup) · 7.4 g fiber · 7.5 g protein · full breakdown
- Chickpeas — GI 28, glycemic load 8 per 150g cooked (~1 cup) · 11 g fiber · 13 g protein · full breakdown
- Pinto Beans — GI 39, glycemic load 10 per 150g cooked (~3/4 cup) · 13.5 g fiber · 13.5 g protein · full breakdown
- Edamame — no GI assigned (little carbohydrate) · 5 g fiber · 11 g protein · full breakdown
How each bean or legume fits the four PCOS subtypes
Kidney Beans
Kidney beans are one of the lowest-GI carbohydrate staples measured — around 24, with a glycemic load near 6 per three-quarter-cup serving — and they bring roughly ten grams of fiber and thirteen grams of protein with that. Across all four PCOS subtypes, they are one of the easier foods to say yes to.
- Insulin-Resistant PCOS: Good fit
- Post-Pill PCOS: Good fit
- Inflammatory PCOS: Good fit
- Lean PCOS: Good fit
Read the full kidney beans guide
Lentils
Lentils are a legume with a low glycemic index (32) and a low glycemic load (6) per 150g cooked serving, plus 12g fiber and 13.5g protein. Despite containing carbohydrate, that combination makes them one of the more favorable foods across PCOS subtypes, though how they fit still depends on pairing and portion.
- Insulin-Resistant PCOS: Good fit
- Post-Pill PCOS: Good fit
- Inflammatory PCOS: Good fit
- Lean PCOS: Depends
Black Beans
Black beans are one of the strongest staples available across all four PCOS subtypes — a glycemic index near 30, with substantial fiber and plant protein in the same serving. The practical question people actually run into isn't blood sugar but digestion, and that's usually a matter of preparation and building up gradually.
- Insulin-Resistant PCOS: Good fit
- Post-Pill PCOS: Good fit
- Inflammatory PCOS: Good fit
- Lean PCOS: Good fit
Read the full black beans guide
Baked Beans
Baked beans in tomato sauce test at a low glycemic index (40) and a low glycemic load (8) per serving, carrying 7.4g fiber and 7.5g protein from the bean itself. The tomato sauce adds sugar, and barbecue, curry, or reheated versions test noticeably higher — the sauce and prep move the number, not the bean.
- Insulin-Resistant PCOS: Depends
- Post-Pill PCOS: Good fit
- Inflammatory PCOS: Use with caution
- Lean PCOS: Depends
Read the full baked beans guide
Chickpeas
Chickpeas are one of the more PCOS-friendly legumes: low GI (28), low GL (8) per serving, and packed with fiber (11g) and protein (13g) that blunt blood sugar swings. Home-boiled is the better-studied prep — canned runs a bit higher GI, and hummus or roasted snacks are different foods with different nutrition profiles.
- Insulin-Resistant PCOS: Good fit
- Post-Pill PCOS: Good fit
- Inflammatory PCOS: Depends
- Lean PCOS: Depends
Pinto Beans
Pinto beans are one of the more useful staples here: a three-quarter-cup cooked serving carries roughly 13.5 grams each of fiber and protein, a glycemic index of 39 and a glycemic load near 10. They fit every PCOS subtype well, and preparation is the main variable worth knowing about.
- Insulin-Resistant PCOS: Good fit
- Post-Pill PCOS: Good fit
- Inflammatory PCOS: Depends
- Lean PCOS: Good fit
Read the full pinto beans guide
Edamame
Edamame — steamed, immature soybeans in the pod — is a high-protein, high-fiber legume with no assigned GI, since it isn't a significant carbohydrate source by standard glycemic-index convention. That profile makes it a broadly supportive, nutrient-dense choice across PCOS subtypes, with how it fits varying more by preparation and portion than by the food itself.
- Insulin-Resistant PCOS: Good fit
- Post-Pill PCOS: Good fit
- Inflammatory PCOS: Depends
- Lean PCOS: Good fit
Reading these numbers
Glycemic index (GI) ranks how quickly a food's carbohydrate raises blood glucose compared with pure glucose. Glycemic load (GL) multiplies that by the carbohydrate in a real serving, so it is usually the more useful number for an actual plate. Foods with little carbohydrate have no GI assigned at all. Servings differ between foods, and cooking method, portion size and what you eat alongside all change the real-world effect.
This page compares Peach's individual food guides side by side. It isn't medical advice, and a clinician or registered dietitian can help you fit these foods to your own plan.