Blood Type B Diet — Best Foods, What to Avoid & Grocery Tips

June 24, 2026 9 min read

What Is the Blood Type B Diet?

The Blood Type B diet is built on the idea that Type B — carried by roughly 10% of the global population — evolved as humans migrated, combining the digestive strengths of both plant-eating and meat-eating ancestors. Unlike Type A (plant-adapted) and Type O (protein-adapted), Type B sits in a middle ground: an omnivorous profile with a notable exception — chicken is one of the most problematic foods for Type B, a quirk not found in any other blood type.

Proponents of the blood type diet believe that lectins — proteins found in foods — interact differently with each blood type's antigen markers. For Type B, the theory is that certain plant lectins (corn, wheat) and the particular protein structure in chicken trigger a suboptimal immune and digestive response, while dairy proteins are generally well-tolerated — a standout difference from most other blood types.

The practical result: Type B has the most flexible diet of all four blood types, with fewer hard restrictions and more genuine choices. The trade-off is that the avoid list is specific and should be taken seriously — especially the chicken prohibition.

Best Foods for Blood Type B

Dairy (Yes — One of the Few Types That Tolerates It)

Type B stands out as one of the few blood types that can digest dairy well. Whole-fat dairy in moderation is generally considered beneficial for Type B, with fermented products like yogurt and kefir being especially well-aligned.

  • Yogurt — plain, full-fat yogurt (best choice for gut health)
  • Milk — cow's milk, goat's milk (better tolerated than for other types)
  • Cheese — most varieties, especially aged hard cheeses
  • Kefir — fermented dairy, excellent for gut flora
  • Cottage cheese — good source of protein and calcium

Meats (Skip the Chicken)

Type B handles red meat and most fish well. The one major exception is chicken — including turkey in some formulations. Lamb and rabbit are considered especially well-aligned with Type B's digestive profile.

  • Best picks — lamb, rabbit, venison (often called "Type B meats")
  • Fish — salmon, halibut, cod, mackerel, sardines (cold-water saltwater fish especially)
  • Other meats — beef, pork, goat, duck (in moderation)
  • Eggs — well-tolerated, good protein source
  • AVOID — chicken and chicken products (unique to Type B restriction)

Vegetables (Beneficial)

Type B has no major vegetable restrictions. A wide variety of vegetables are considered beneficial, with leafy greens and sulfur-rich vegetables being particularly well-aligned.

  • Leafy greens — spinach, kale, broccoli, collard greens, bok choy
  • Root vegetables — beets, carrots, sweet potatoes, parsnips
  • Cruciferous — cabbage, Brussels sprouts, cauliflower, radishes
  • Alliums — garlic, onion, leeks, shallots
  • Mushrooms — shiitake, cremini, button (shiitake especially valued in Type B diet)
  • Other — peppers, zucchini, okra, eggplant, parsley, cilantro

Fruits (Beneficial)

Type B tolerates a broad range of fruits. Bananas and most tropical fruits are considered well-aligned. Pineapple and papaya are especially good for Type B due to their digestive enzyme content.

  • Tropical — pineapple, papaya, mango, banana
  • Berries — grapes, cranberries, plums, prunes
  • Citrus — lemons, limes (in moderation)
  • Stone fruits — cherries, figs, apricots

Grains & Starches (Moderation)

Type B has moderate tolerance for grains. Wheat products are generally discouraged (a lectin issue). Oats, rice, and millet are considered better choices. Buckwheat — despite being a pseudograin — is on the avoid list for Type B, which is distinctive.

  • Better choices — rice (brown or white), oats, millet, quinoa
  • Limit or avoid — wheat bread, pasta, corn products, buckwheat

Foods to Avoid for Blood Type B

Type B's avoid list is shorter than most, but the items on it are specific and worth respecting. Chicken is the standout — a restriction unique to Type B that doesn't apply to any other blood type. Scan any packaged product with Manna-Scan to see how specific ingredients affect your Type B profile before adding them to your cart.

  • Chicken — the most distinctive Type B restriction. Turkey is neutral-to-avoid for some formulations. Avoid chicken breast, thighs, ground chicken, chicken broth, and any product where chicken is a primary ingredient.
  • Corn and corn products — tortillas, polenta, cornmeal, corn syrup, popcorn
  • Buckwheat — despite being a gluten-free pseudograin, buckwheat is flagged as problematic for Type B
  • Lentils — a legume restriction that sets Type B apart from Type O and Type A
  • Wheat and wheat products — bread, pasta, baked goods, commercial cereals (even whole wheat)
  • Peanuts — a nut restriction unique to Type B
  • Processed foods — additives and preservatives can aggravate the Type B immune response
  • Refined sugar — candy, sugary drinks, excess desserts

Note: The Type B avoid list is shorter than other types, but chicken restriction is the one that has the strongest anecdotal support among practitioners. If you eat chicken frequently and don't feel great, try removing it for 2–3 weeks and see what changes.

Sample Grocery List for Blood Type B

A practical weekly grocery list for a Type B diet. Type B is the most flexible of the four blood types — use this as a starting point and adjust based on how you feel.

Dairy (Stock Up)

  • Full-fat yogurt (2–3 containers, plain preferred)
  • Milk or oat milk (1 carton)
  • Hard cheese (cheddar, gruyere, or gouda, 1 block)
  • Kefir (1 bottle)
  • Cottage cheese (1 small container)

Proteins

  • Lamb or ground lamb (1–1.5 lbs)
  • Beef or pork (0.5–1 lb)
  • Salmon or halibut fillets (0.5–1 lb)
  • Mackerel or sardines (1 can or pack)
  • Eggs (1 dozen)
  • Skip: chicken, turkey

Vegetables

  • Spinach (1–2 bags or bunches)
  • Kale or broccoli (1 bunch/bag)
  • Beets (1 bunch) and carrots (1 bag)
  • Cabbage or Brussels sprouts (1 head/bag)
  • Garlic (1 head), onion (2), mushrooms (1 pack)
  • Sweet potatoes (2–3 lbs)
  • Peppers or eggplant (as desired)

Fruits

  • Pineapple (1) or papaya (1 medium)
  • Bananas (1 bunch)
  • Grapes or plums (1 lb)
  • Cranberries (1 bag, fresh or frozen)
  • Lemons or limes (2–3)

Pantry

  • Brown rice or quinoa (1 bag each)
  • Oats or millet (1 bag)
  • Olive oil (extra virgin, 1 bottle)
  • Walnuts or almonds (1 bag)
  • Green tea or herbal tea (1 box)
  • Avoid: wheat bread, pasta, corn products, buckwheat

Quick Type B Recipes

Lamb & Vegetable Curry

Prep time: 15 minutes   Cook time: 35 minutes   Serves: 4

Ingredients: 1 lb lamb (cubed), 2 cups spinach, 1 cup mushrooms, 1 onion (diced), 3 cloves garlic, 1 tbsp ginger, 2 tbsp olive oil, 1 can coconut milk, 2 tbsp curry powder, 1 tsp turmeric, 1 cup broth, salt and pepper, fresh cilantro.

Instructions: Season lamb with salt, pepper, and half the curry powder. Heat oil in a large pot over medium-high. Brown lamb on all sides, about 4–5 minutes. Remove and set aside. Add onion, garlic, and ginger to the pot — sauté 2–3 minutes. Add remaining curry powder and turmeric, stir 30 seconds. Add coconut milk and broth, stir to combine. Return lamb to pot, bring to a simmer, cover and cook 20–25 minutes until lamb is tender. Add mushrooms and spinach in the last 5 minutes. Serve over brown rice, topped with cilantro. Lamb is one of the most celebrated Type B proteins — this curry makes it the centerpiece of a weeknight dinner.

Salmon & Pineapple Bowl with Bok Choy

Prep time: 10 minutes   Cook time: 15 minutes   Serves: 2

Ingredients: 2 salmon fillets, 2 cups bok choy (chopped), 1 cup pineapple chunks, 1 tbsp ginger (grated), 2 tbsp olive oil, 1 tbsp coconut aminos, 1 tsp rice vinegar, 1 cup brown rice (cooked).

Instructions: Cook brown rice if not already done. Heat 1 tbsp oil in a pan over medium-high. Season salmon with salt and pepper. Sear salmon skin-side up for 4 minutes, flip and cook 3–4 more minutes until done. In a separate pan, sauté bok choy with ginger and remaining oil for 2–3 minutes. Warm pineapple chunks in the last minute. Assemble bowls: rice base, salmon, bok choy, and pineapple on top. Drizzle with coconut aminos and rice vinegar. Both pineapple and salmon are well-aligned with Type B — this is a quick, nutritious weeknight bowl.

Garlic Mushroom Egg Fried Rice

Prep time: 5 minutes   Cook time: 15 minutes   Serves: 2

Ingredients: 2 eggs, 2 cups day-old rice, 1 cup mushrooms (sliced), 3 cloves garlic, 1 cup spinach, 2 tbsp olive oil, 1 tbsp coconut aminos, 1 tsp sesame oil, 2 green onions (sliced).

Instructions: Heat 1 tbsp oil in a wok or large pan over high heat. Scramble eggs, break into pieces, and set aside. Add remaining oil, garlic, and mushrooms — stir-fry 2–3 minutes until mushrooms are golden. Add cold rice, breaking up clumps, and stir-fry 3–4 minutes. Add spinach, coconut aminos, and sesame oil. Toss everything together for 2 minutes until spinach is wilted. Return eggs to the pan, mix through, and top with green onions. No chicken, no wheat — this is a clean, Type B-friendly weeknight meal in under 20 minutes.

Yogurt Berry Parfait

Prep time: 5 minutes   Serves: 1

Ingredients: 1 cup full-fat plain yogurt, half cup grapes or plums (sliced), 1 tbsp walnuts, 1 tsp honey, pinch of cinnamon.

Instructions: Layer yogurt in a bowl or glass. Top with sliced grapes or plums, walnuts, a drizzle of honey, and cinnamon. Fermented dairy is one of the best food categories for Type B — this parfait works as a breakfast, snack, or dessert. Make it ahead for grab-and-go mornings.

Scan Any Grocery Product for Type B

Not sure if a product on the shelf works for your blood type? Open Manna-Scan on your phone, scan the barcode, and get an instant personalized breakdown — beneficial, limit, or avoid — based on your Type B profile. Even products that seem "healthy" can contain ingredients that don't work well for Type B.

Scan a Product Now →

Or browse our complete food list for all four blood types if you haven't chosen yours yet. And if you're Type O or Type A, check out the complete guides for Blood Type O and Blood Type A.

Key Takeaways for Type B

  • Drop the chicken. This is the unique Type B restriction — no other blood type has this. Replace with lamb, beef, rabbit, or fish.
  • Embrace dairy. Type B is one of the few blood types that tolerates dairy well. Yogurt, kefir, and cheese are all solid choices.
  • Eat fish twice a week. Cold-water saltwater fish (salmon, halibut, mackerel) are especially well-aligned with Type B.
  • Watch the grains. Wheat and buckwheat are on the avoid list. Stick with rice, oats, millet, and quinoa.
  • Fill half your plate with vegetables. Type B has no major vegetable restrictions — load up on leafy greens, mushrooms, and cruciferous vegetables.
  • Scan before you buy. Use Manna-Scan to check any packaged product in real time before it goes in your basket.
  • Listen to your body. The blood type diet is a framework — adjust based on how you actually feel.