{
  "schema_version": "compare-page.v2",
  "page_id": "narrow-neck-vs-wide-neck-dr-brown-s-baby-bottles",
  "url": "https://robotrunk.com/compare/want/narrow-neck-vs-wide-neck-dr-brown-s-baby-bottles",
  "title": "Narrow-neck vs. wide-neck Dr. Brown's baby bottles",
  "question": "What differs between narrow-neck and wide-neck Dr. Brown's baby bottles?",
  "answer": "Dr. Brown's Natural Flow Anti-Colic Options+ Narrow-Neck bottle: The product is Dr. Brown's Natural Flow Anti-Colic Options+ Narrow Baby Bottle with Level 1 Slow Flow Nipple, 8 oz/250 mL. Dr. Brown's Natural Flow Anti-Colic Options+ Wide-Neck Glass Baby Bottle: The listed product is Dr. Brown's Natural Flow Anti-Colic Options+ Wide-Neck baby bottle with Level 1 slow flow nipple, 9 oz/270 mL, SKU WB91700, from Dr. Brown's. Colic claims: Narrow-neck Dr. Brown's anti-colic bottles are clinically proven to reduce colic, similar to wide-neck. Wide-neck listing reports: Multiple users on this listing report the wide-neck Options+ bottles leaking badly, including one bottle that emptied itself while being carried, and teats that dribble during feeding. Narrow-neck complaint: The main complaints are that the anti-colic vent creates extra parts to wash.",
  "kind": "glass baby bottles",
  "market": "US",
  "generated_at": "2026-10-14T11:15:09.418Z",
  "columns": [
    "Size",
    "Colic claim",
    "Reported issues",
    "Nipple"
  ],
  "notices": {
    "facts": "Every value in the table is a fact RoboTrunk checked, linked to the page it came from. A dash means no checked fact fills that cell.",
    "price": "Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live."
  },
  "cited_facts": [
    {
      "ref": "p1.f1",
      "product": "Dr. Brown's Natural Flow Anti-Colic Options+ Wide-Neck Glass Baby Bottle",
      "field": "identity",
      "value": "The listed product is Dr. Brown's Natural Flow Anti-Colic Options+ Wide-Neck baby bottle with Level 1 slow flow nipple, 9 oz/270 mL, SKU WB91700, from Dr. Brown's.",
      "stated_as": "Dr. Brown’s Natural Flow® Anti-Colic Options+™ Wide-Neck Baby Bottle with Level 1 Slow Flow Nipple, 9 oz/270 mL",
      "source_type": "listing",
      "source_url": "https://4f71f1-4.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:16:33.630Z"
    },
    {
      "ref": "p1.f2",
      "product": "Dr. Brown's Natural Flow Anti-Colic Options+ Wide-Neck Glass Baby Bottle",
      "field": "nipple design",
      "value": "The breast-like nipple shape is designed to encourage a proper latch for a more natural bottle-feeding experience.",
      "stated_as": "The breast-like shape encourages a proper latch for a more natural bottle-feeding experience.",
      "source_type": "guide",
      "source_url": "https://4f71f1-4.myshopify.com/products/dr-browns-options-wide-neck-glass-baby-bottle-9oz",
      "source_read_at": "2026-10-11T18:50:55.101Z"
    },
    {
      "ref": "p1.f10",
      "product": "Dr. Brown's Natural Flow Anti-Colic Options+ Wide-Neck Glass Baby Bottle",
      "field": "anti-colic claim",
      "value": "The internal vent system is described as clinically proven to reduce colic and to help reduce spit-up, burping and gas.",
      "stated_as": "The anti-colic internal vent system is clinically proven to reduce colic and helps reduce spit-up, burping, and gas.",
      "source_type": "listing",
      "source_url": "https://4f71f1-4.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:16:33.630Z"
    },
    {
      "ref": "p2.f1",
      "product": "Dr. Brown's Natural Flow® Anti-Colic Options+™ Glass Narrow Baby Bottle",
      "field": "identity",
      "value": "The product is Dr. Brown's Natural Flow Anti-Colic Options+ Glass Narrow Baby Bottle with Level 1 Slow Flow Nipple, 4 oz/120 mL, 1-Pack, SKU SB41001, sold as Default Title.",
      "stated_as": "Title: Dr. Brown's Natural Flow® Anti-Colic Options+™ Glass Narrow Baby Bottle with Level 1 Slow Flow Nipple, 4 oz/120 mL, 1-Pack",
      "source_type": "listing",
      "source_url": "https://4f71f1-4.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:16:33.630Z"
    },
    {
      "ref": "p2.f11",
      "product": "Dr. Brown's Natural Flow® Anti-Colic Options+™ Glass Narrow Baby Bottle",
      "field": "narrow bottle anti-colic",
      "value": "Narrow-neck Dr. Brown's anti-colic bottles are clinically proven to reduce colic, similar to wide-neck.",
      "stated_as": "Los biberones anticólicos boca estrecha Dr. Brown’s\n          están probados clínicamente para reducir cólicos,\n          similares a los de boca ancha.",
      "source_type": "manual",
      "source_url": "https://drbrowns.pe/wp-content/uploads/2026/04/Catalogo-Minorista-ABRIL_compressed.pdf",
      "source_read_at": "2026-10-11T18:20:44.440Z"
    },
    {
      "ref": "p3.f1",
      "product": "Dr. Brown's Natural Flow Anti-Colic Options+ Wide-Neck Baby Bottle",
      "field": "what it is",
      "value": "This is a Dr. Brown's Natural Flow Anti-Colic Options+ wide-neck baby bottle in glass, 5oz/150mL, with a Level 1 slow-flow nipple.",
      "stated_as": "Dr. Brown’s Natural Flow® Anti-Colic Options+™ Wide-Neck Baby Bottle with Level 1 Slow Flow Nipple, 5oz/150mL",
      "source_type": "listing",
      "source_url": "https://4f71f1-4.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:16:33.630Z"
    },
    {
      "ref": "p3.f2",
      "product": "Dr. Brown's Natural Flow Anti-Colic Options+ Wide-Neck Baby Bottle",
      "field": "nipple shape",
      "value": "The breast-like nipple shape encourages a proper latch and gives a consistent flow so babies feed at their own pace.",
      "stated_as": "Breast-like nipple shape encourages a proper latch and provides a consistent flow so babies feed at their own pace",
      "source_type": "guide",
      "source_url": "https://4f71f1-4.myshopify.com/products/dr-browns-anti-colic-options-wide-neck-baby-glass-bottle-5oz-150ml",
      "source_read_at": "2026-10-11T17:45:44.555Z"
    },
    {
      "ref": "p3.f5",
      "product": "Dr. Brown's Natural Flow Anti-Colic Options+ Wide-Neck Baby Bottle",
      "field": "leaking in transport",
      "value": "Multiple users on this listing report the wide-neck Options+ bottles leaking badly, including one bottle that emptied itself while being carried, and teats that dribble during feeding.",
      "stated_as": "Multiple users on this listing report the wide-neck Options+ bottles leaking badly, including one bottle that emptied itself while being carried, and teats that dribble during feeding.",
      "source_type": "review",
      "source_url": "https://www.productreview.com.au/listings/dr-browns-options-wide-neck-bottle",
      "source_read_at": "2026-10-11T17:46:18.744Z"
    },
    {
      "ref": "p3.f7",
      "product": "Dr. Brown's Natural Flow Anti-Colic Options+ Wide-Neck Baby Bottle",
      "field": "colic claims",
      "value": "The anti-colic internal vent system is clinically proven to reduce colic and helps reduce spit-up, burping and gas.",
      "stated_as": "The anti-colic internal vent system is clinically proven to reduce colic and helps reduce spit-up, burping, and gas",
      "source_type": "listing",
      "source_url": "https://4f71f1-4.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:16:33.630Z"
    },
    {
      "ref": "p4.f1",
      "product": "Dr. Brown's Natural Flow® Anti-Colic Options+™ Narrow Baby Bottle",
      "field": "identity",
      "value": "The product is Dr. Brown's Natural Flow Anti-Colic Options+ Narrow Baby Bottle with Level 1 Slow Flow Nipple, 8 oz/250 mL.",
      "stated_as": "Dr. Brown's Natural Flow® Anti-Colic Options+™ Narrow Baby Bottle with Level 1 Slow Flow Nipple, 8 oz/250 mL",
      "source_type": "guide",
      "source_url": "https://4f71f1-4.myshopify.com/products/dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-8oz-250ml",
      "source_read_at": "2026-10-11T18:18:40.241Z"
    },
    {
      "ref": "p4.f10",
      "product": "Dr. Brown's Natural Flow® Anti-Colic Options+™ Narrow Baby Bottle",
      "field": "extra parts",
      "value": "The main complaints are that the anti-colic vent creates extra parts to wash.",
      "stated_as": "The main complaints are that the anti-colic vent creates extra parts to wash.",
      "source_type": "blog",
      "source_url": "https://www.redditmamas.com/blog/glass-vs-plastic-baby-bottles",
      "source_read_at": "2026-10-11T18:19:47.376Z"
    },
    {
      "ref": "p4.f11",
      "product": "Dr. Brown's Natural Flow® Anti-Colic Options+™ Narrow Baby Bottle",
      "field": "anti-colic",
      "value": "The internal vent system is clinically proven to reduce colic and helps reduce spit-up, burping, and gas.",
      "stated_as": "The anti-colic internal vent system is clinically proven to reduce colic and helps reduce spit-up, burping, and gas",
      "source_type": "guide",
      "source_url": "https://4f71f1-4.myshopify.com/products/dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-8oz-250ml",
      "source_read_at": "2026-10-11T18:18:40.241Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "merchant": {
        "slug": "drbrownsbaby-com",
        "display_name": "drbrownsbaby.com"
      },
      "product_id": "gid://shopify/Product/9139832160533",
      "name": "Dr. Brown's Natural Flow® Anti-Colic Options+™ Glass Narrow Baby Bottle",
      "url": "/products/ucp/drbrownsbaby-com/9139832160533",
      "why": "Narrow-neck Dr. Brown's anti-colic bottles are clinically proven to reduce colic, similar to wide-neck.",
      "cells": [
        {
          "column": "Size",
          "fact": {
            "field": "identity",
            "value": "The product is Dr. Brown's Natural Flow Anti-Colic Options+ Glass Narrow Baby Bottle with Level 1 Slow Flow Nipple, 4 oz/120 mL, 1-Pack, SKU SB41001, sold as Default Title.",
            "stated_as": "Title: Dr. Brown's Natural Flow® Anti-Colic Options+™ Glass Narrow Baby Bottle with Level 1 Slow Flow Nipple, 4 oz/120 mL, 1-Pack",
            "source_type": "listing",
            "source_url": "https://4f71f1-4.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:16:33.630Z"
          }
        },
        {
          "column": "Colic claim",
          "fact": {
            "field": "narrow bottle anti-colic",
            "value": "Narrow-neck Dr. Brown's anti-colic bottles are clinically proven to reduce colic, similar to wide-neck.",
            "stated_as": "Los biberones anticólicos boca estrecha Dr. Brown’s\n          están probados clínicamente para reducir cólicos,\n          similares a los de boca ancha.",
            "source_type": "manual",
            "source_url": "https://drbrowns.pe/wp-content/uploads/2026/04/Catalogo-Minorista-ABRIL_compressed.pdf",
            "source_read_at": "2026-10-11T18:20:44.440Z"
          }
        },
        {
          "column": "Reported issues",
          "fact": null
        },
        {
          "column": "Nipple",
          "fact": null
        }
      ]
    },
    {
      "rank": 2,
      "merchant": {
        "slug": "drbrownsbaby-com",
        "display_name": "drbrownsbaby.com"
      },
      "product_id": "gid://shopify/Product/9139832848661",
      "name": "Dr. Brown's Natural Flow Anti-Colic Options+ Wide-Neck Glass Baby Bottle",
      "url": "/products/ucp/drbrownsbaby-com/9139832848661",
      "why": "The internal vent system is described as clinically proven to reduce colic and to help reduce spit-up, burping and gas.",
      "cells": [
        {
          "column": "Size",
          "fact": {
            "field": "identity",
            "value": "The listed product is Dr. Brown's Natural Flow Anti-Colic Options+ Wide-Neck baby bottle with Level 1 slow flow nipple, 9 oz/270 mL, SKU WB91700, from Dr. Brown's.",
            "stated_as": "Dr. Brown’s Natural Flow® Anti-Colic Options+™ Wide-Neck Baby Bottle with Level 1 Slow Flow Nipple, 9 oz/270 mL",
            "source_type": "listing",
            "source_url": "https://4f71f1-4.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:16:33.630Z"
          }
        },
        {
          "column": "Colic claim",
          "fact": {
            "field": "anti-colic claim",
            "value": "The internal vent system is described as clinically proven to reduce colic and to help reduce spit-up, burping and gas.",
            "stated_as": "The anti-colic internal vent system is clinically proven to reduce colic and helps reduce spit-up, burping, and gas.",
            "source_type": "listing",
            "source_url": "https://4f71f1-4.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:16:33.630Z"
          }
        },
        {
          "column": "Reported issues",
          "fact": null
        },
        {
          "column": "Nipple",
          "fact": {
            "field": "nipple design",
            "value": "The breast-like nipple shape is designed to encourage a proper latch for a more natural bottle-feeding experience.",
            "stated_as": "The breast-like shape encourages a proper latch for a more natural bottle-feeding experience.",
            "source_type": "guide",
            "source_url": "https://4f71f1-4.myshopify.com/products/dr-browns-options-wide-neck-glass-baby-bottle-9oz",
            "source_read_at": "2026-10-11T18:50:55.101Z"
          }
        }
      ]
    },
    {
      "rank": 3,
      "merchant": {
        "slug": "drbrownsbaby-com",
        "display_name": "drbrownsbaby.com"
      },
      "product_id": "gid://shopify/Product/9139832193301",
      "name": "Dr. Brown's Natural Flow® Anti-Colic Options+™ Narrow Baby Bottle",
      "url": "/products/ucp/drbrownsbaby-com/9139832193301",
      "why": "The internal vent system is clinically proven to reduce colic and helps reduce spit-up, burping, and gas.",
      "cells": [
        {
          "column": "Size",
          "fact": {
            "field": "identity",
            "value": "The product is Dr. Brown's Natural Flow Anti-Colic Options+ Narrow Baby Bottle with Level 1 Slow Flow Nipple, 8 oz/250 mL.",
            "stated_as": "Dr. Brown's Natural Flow® Anti-Colic Options+™ Narrow Baby Bottle with Level 1 Slow Flow Nipple, 8 oz/250 mL",
            "source_type": "guide",
            "source_url": "https://4f71f1-4.myshopify.com/products/dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-8oz-250ml",
            "source_read_at": "2026-10-11T18:18:40.241Z"
          }
        },
        {
          "column": "Colic claim",
          "fact": {
            "field": "anti-colic",
            "value": "The internal vent system is clinically proven to reduce colic and helps reduce spit-up, burping, and gas.",
            "stated_as": "The anti-colic internal vent system is clinically proven to reduce colic and helps reduce spit-up, burping, and gas",
            "source_type": "guide",
            "source_url": "https://4f71f1-4.myshopify.com/products/dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-8oz-250ml",
            "source_read_at": "2026-10-11T18:18:40.241Z"
          }
        },
        {
          "column": "Reported issues",
          "fact": {
            "field": "extra parts",
            "value": "The main complaints are that the anti-colic vent creates extra parts to wash.",
            "stated_as": "The main complaints are that the anti-colic vent creates extra parts to wash.",
            "source_type": "blog",
            "source_url": "https://www.redditmamas.com/blog/glass-vs-plastic-baby-bottles",
            "source_read_at": "2026-10-11T18:19:47.376Z"
          }
        },
        {
          "column": "Nipple",
          "fact": null
        }
      ]
    },
    {
      "rank": 4,
      "merchant": {
        "slug": "drbrownsbaby-com",
        "display_name": "drbrownsbaby.com"
      },
      "product_id": "gid://shopify/Product/9139832979733",
      "name": "Dr. Brown's Natural Flow Anti-Colic Options+ Wide-Neck Baby Bottle",
      "url": "/products/ucp/drbrownsbaby-com/9139832979733",
      "why": "The anti-colic internal vent system is clinically proven to reduce colic and helps reduce spit-up, burping and gas.",
      "cells": [
        {
          "column": "Size",
          "fact": {
            "field": "what it is",
            "value": "This is a Dr. Brown's Natural Flow Anti-Colic Options+ wide-neck baby bottle in glass, 5oz/150mL, with a Level 1 slow-flow nipple.",
            "stated_as": "Dr. Brown’s Natural Flow® Anti-Colic Options+™ Wide-Neck Baby Bottle with Level 1 Slow Flow Nipple, 5oz/150mL",
            "source_type": "listing",
            "source_url": "https://4f71f1-4.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:16:33.630Z"
          }
        },
        {
          "column": "Colic claim",
          "fact": {
            "field": "colic claims",
            "value": "The anti-colic internal vent system is clinically proven to reduce colic and helps reduce spit-up, burping and gas.",
            "stated_as": "The anti-colic internal vent system is clinically proven to reduce colic and helps reduce spit-up, burping, and gas",
            "source_type": "listing",
            "source_url": "https://4f71f1-4.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:16:33.630Z"
          }
        },
        {
          "column": "Reported issues",
          "fact": {
            "field": "leaking in transport",
            "value": "Multiple users on this listing report the wide-neck Options+ bottles leaking badly, including one bottle that emptied itself while being carried, and teats that dribble during feeding.",
            "stated_as": "Multiple users on this listing report the wide-neck Options+ bottles leaking badly, including one bottle that emptied itself while being carried, and teats that dribble during feeding.",
            "source_type": "review",
            "source_url": "https://www.productreview.com.au/listings/dr-browns-options-wide-neck-bottle",
            "source_read_at": "2026-10-11T17:46:18.744Z"
          }
        },
        {
          "column": "Nipple",
          "fact": {
            "field": "nipple shape",
            "value": "The breast-like nipple shape encourages a proper latch and gives a consistent flow so babies feed at their own pace.",
            "stated_as": "Breast-like nipple shape encourages a proper latch and provides a consistent flow so babies feed at their own pace",
            "source_type": "guide",
            "source_url": "https://4f71f1-4.myshopify.com/products/dr-browns-anti-colic-options-wide-neck-baby-glass-bottle-5oz-150ml",
            "source_read_at": "2026-10-11T17:45:44.555Z"
          }
        }
      ]
    }
  ]
}