{"id":677,"date":"2026-09-11T07:07:31","date_gmt":"2026-09-11T07:07:31","guid":{"rendered":"https:\/\/flockline.com\/learn\/grubblies-vs-mealworms-chicken-treats\/"},"modified":"2026-09-11T08:58:53","modified_gmt":"2026-09-11T08:58:53","slug":"grubblies-vs-mealworms-chicken-treats","status":"publish","type":"guide","link":"https:\/\/flockline.com\/learn\/feed\/grubblies-vs-mealworms-chicken-treats\/","title":{"rendered":"Grubbly Farms Grubblies vs Dried Mealworms: Which High-Protein Chicken Treat Is Actually Better for Eggs?"},"content":{"rendered":"<aside class=\"fl-quick-verdict\" aria-label=\"Quick Verdict\">\n<div class=\"fl-quick-verdict__header\">\n    <span class=\"fl-quick-verdict__label\">\u2b50 The 30-Second Bottom Line<\/span><br \/>\n    <span class=\"fl-badge fl-badge--winner\">Winner: Grubblies for Egg Quality<\/span>\n  <\/div>\n<h2 class=\"fl-quick-verdict__title\">Grubblies (Black Soldier Fly Larvae) deliver 50 times more calcium than mealworms, making them vastly superior for eggshell strength and molt recovery.<\/h2>\n<p class=\"fl-quick-verdict__body\">\n    While traditional dried mealworms offer plenty of protein, their inverted calcium-to-phosphorus ratio can deplete a hen&#8217;s calcium reserves when fed frequently. <strong>Grubbly Farms Grubblies ($22 to $45)<\/strong> combine 40% crude protein with an impressive 3.0% natural dietary calcium (compared to only 0.06% in mealworms). This directly prevents soft-shell eggs and helps pin feathers regenerate faster during seasonal molt.\n  <\/p>\n<\/aside>\n<div class=\"fl-comparison-table-wrap\">\n<table class=\"fl-comparison-table\">\n<thead>\n<tr>\n<th scope=\"col\">Nutritional Metric<\/th>\n<th scope=\"col\" class=\"col-highlight\">Grubbly Farms Grubblies<\/th>\n<th scope=\"col\">Traditional Dried Mealworms<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\">Insect Source<\/th>\n<td class=\"col-highlight\"><span class=\"fl-spec-badge\"><span class=\"fl-spec-badge__dot\"><\/span> Black Soldier Fly Larvae<\/span><\/td>\n<td>Yellow Mealworm (Tenebrio molitor)<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Calcium Content<\/th>\n<td class=\"col-highlight\"><strong>3.0% to 3.5% (50x Higher)<\/strong><\/td>\n<td>0.06% (Negligible)<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Crude Protein<\/th>\n<td class=\"col-highlight\">38% to 42%<\/td>\n<td><strong>50% to 53%<\/strong><\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Healthy Fats &amp; Lauric Acid<\/th>\n<td class=\"col-highlight\">High (Natural gut support)<\/td>\n<td>Moderate<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Best Use Case<\/th>\n<td class=\"col-highlight\">Laying hens, soft shells, molting flock<\/td>\n<td>Winter calorie boost and training<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Average Retail Price<\/th>\n<td class=\"col-highlight\">$22 \/ lb (Premium sustainable)<\/td>\n<td>$14 \/ lb (Economical bulk)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 id=\"deep-dive-grubblies\">Contender 1: Grubbly Farms Grubblies<\/h2>\n<div class=\"fl-product-card fl-product-card--top\">\n<div class=\"fl-product-card__header\">\n<div>\n<h3 class=\"fl-product-card__title\">1. Grubbly Farms Grubblies<\/h3>\n<div style=\"margin-top: 0.35rem;\">\n        <span class=\"fl-rating-stars\">\u2605\u2605\u2605\u2605\u2605 <span>4.8 (8,200+ Reviews)<\/span><\/span>\n      <\/div>\n<\/p><\/div>\n<p>    <span class=\"fl-badge fl-badge--winner\">Editor&#8217;s Choice<\/span>\n  <\/div>\n<div class=\"fl-product-card__visual\">\n    <img decoding=\"async\" src=\"\/wp-content\/themes\/flockline-learn\/assets\/products\/wormsking-bsfl.webp\" alt=\"WormsKing 5LB Dried Black Soldier Fly Larvae Bag\" width=\"320\" height=\"320\" loading=\"lazy\" \/>\n  <\/div>\n<div class=\"fl-product-card__specs\">\n<div class=\"fl-product-card__spec-item\">\n      <strong>Calcium Level<\/strong><br \/>\n      <span>3.0% to 3.5% (Bioavailable)<\/span>\n    <\/div>\n<div class=\"fl-product-card__spec-item\">\n      <strong>Crude Protein<\/strong><br \/>\n      <span>40% Whole Protein<\/span>\n    <\/div>\n<div class=\"fl-product-card__spec-item\">\n      <strong>Source Origin<\/strong><br \/>\n      <span>USA Harvested Black Soldier Fly<\/span>\n    <\/div>\n<div class=\"fl-product-card__spec-item\">\n      <strong>Target Benefit<\/strong><br \/>\n      <span>Strong Eggshells &amp; Molt Growth<\/span>\n    <\/div>\n<\/p><\/div>\n<p>\n    Grubblies are oven-dried Black Soldier Fly Larvae (BSFL) raised on clean surplus fruits, vegetables, and grains. Unlike mealworms, whose calcium-to-phosphorus ratio is heavily imbalanced, BSFL develop a naturally dense calcium exoskeleton. This calcium is instantly bioavailable to laying hens, helping them quickly restore shell thickness after soft-shell scares and accelerating pin-feather emergence during fall molt.\n  <\/p>\n<div class=\"fl-review-quote\">\n    After two weeks of switching from mealworms to Grubblies, my hens&#8217; eggshells stopped cracking in the nesting boxes. Plus, during molt, their bare patches filled in almost twice as fast.<br \/>\n    <strong>Sarah M., Verified Buyer (Wisconsin Backyard Flock)<\/strong>\n  <\/div>\n<div class=\"fl-pros-cons\">\n<div class=\"fl-pros\">\n<div class=\"fl-pros__title\"><span class=\"fl-icon-check\">\u2713<\/span> Grubblies Advantages<\/div>\n<ul>\n<li>Naturally high calcium (3.0%) maintains shell hardness without extra dosing.<\/li>\n<li>Rich in lauric acid, an essential fatty acid supporting natural gut immunity.<\/li>\n<li>Sustainable production fed exclusively on clean food surplus.<\/li>\n<li>Whole intact larvae provide a crunch hens eagerly forage for.<\/li>\n<\/ul><\/div>\n<div class=\"fl-cons\">\n<div class=\"fl-cons__title\"><span class=\"fl-icon-cross\">\u2715<\/span> Grubblies Drawbacks<\/div>\n<ul>\n<li>Higher cost per pound than bulk imported mealworms ($18 to $24 per bag).<\/li>\n<li>Noticeably stronger earthy aroma straight from the bag.<\/li>\n<\/ul><\/div>\n<\/p><\/div>\n<div class=\"fl-product-card__cta-row\">\n<div class=\"fl-product-card__price\">$22 &#8211; $45<\/div>\n<p>    <a class=\"fl-product-card__btn\" href=\"https:\/\/amzn.to\/example\" target=\"_blank\" rel=\"noopener\">Check Amazon \/ Chewy Price \u2192<\/a>\n  <\/div>\n<\/div>\n<h2 id=\"deep-dive-mealworms\">Contender 2: Traditional Dried Mealworms (Amzey \/ Happy Hen)<\/h2>\n<div class=\"fl-product-card\">\n<div class=\"fl-product-card__header\">\n<div>\n<h3 class=\"fl-product-card__title\">2. Traditional Dried Mealworms<\/h3>\n<div style=\"margin-top: 0.35rem;\">\n        <span class=\"fl-rating-stars\">\u2605\u2605\u2605\u2605\u2606 <span>4.6 (12,400+ Reviews)<\/span><\/span>\n      <\/div>\n<\/p><\/div>\n<p>    <span class=\"fl-badge fl-badge--budget\">Best Value<\/span>\n  <\/div>\n<div class=\"fl-product-card__visual\">\n    <img decoding=\"async\" src=\"\/wp-content\/themes\/flockline-learn\/assets\/products\/hatortempt-mealworms.webp\" alt=\"Hatortempt Bulk Dried Mealworms for Chickens\" width=\"320\" height=\"320\" loading=\"lazy\" \/>\n  <\/div>\n<div class=\"fl-product-card__specs\">\n<div class=\"fl-product-card__spec-item\">\n      <strong>Calcium Level<\/strong><br \/>\n      <span>0.06% (Requires Calcium Boost)<\/span>\n    <\/div>\n<div class=\"fl-product-card__spec-item\">\n      <strong>Crude Protein<\/strong><br \/>\n      <span>52% High Protein<\/span>\n    <\/div>\n<div class=\"fl-product-card__spec-item\">\n      <strong>Source Origin<\/strong><br \/>\n      <span>Imported Yellow Mealworms<\/span>\n    <\/div>\n<div class=\"fl-product-card__spec-item\">\n      <strong>Target Benefit<\/strong><br \/>\n      <span>Winter Calorie &amp; Hand Training<\/span>\n    <\/div>\n<\/p><\/div>\n<p>\n    Traditional dried mealworms remain the most widely available chicken treat on the market. With over 50% crude protein, they provide a fast calorie and amino acid spike for winter warming. However, because they contain almost no calcium, feeding more than a tablespoon per hen each day can dilute total dietary calcium and cause fragile shells.\n  <\/p>\n<div class=\"fl-pros-cons\">\n<div class=\"fl-pros\">\n<div class=\"fl-pros__title\"><span class=\"fl-icon-check\">\u2713<\/span> Mealworms Advantages<\/div>\n<ul>\n<li>Highest crude protein content (50%+) for rapid winter body heat.<\/li>\n<li>Economical 5-pound and 10-pound bulk boxes available at Tractor Supply and online.<\/li>\n<li>Irresistible treat for hand-training and coop recall at sunset.<\/li>\n<\/ul><\/div>\n<div class=\"fl-cons\">\n<div class=\"fl-cons__title\"><span class=\"fl-icon-cross\">\u2715<\/span> Mealworms Drawbacks<\/div>\n<ul>\n<li>Near-zero calcium requires strict portion control to protect eggshell density.<\/li>\n<li>Primarily imported with limited micronutrient diversity.<\/li>\n<\/ul><\/div>\n<\/p><\/div>\n<div class=\"fl-product-card__cta-row\">\n<div class=\"fl-product-card__price\">$14 &#8211; $28<\/div>\n<p>    <a class=\"fl-product-card__btn\" href=\"https:\/\/amzn.to\/example\" target=\"_blank\" rel=\"noopener\">Check Tractor Supply \/ Amazon \u2192<\/a>\n  <\/div>\n<\/div>\n<h2 id=\"decision-matrix\">The Verdict: When to Choose Each<\/h2>\n<ul>\n<li><strong>Choose Grubbly Farms Grubblies:<\/strong> If your hens are actively laying, you notice soft eggshells, or your flock is molting. The bioavailable calcium makes it an active health booster.<\/li>\n<li><strong>Choose Traditional Mealworms:<\/strong> If you need an economical high-protein treat for winter flock warmth, taming new pullets, or hand-recall training where price per pound is key.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Compare Grubbly Farms Grubblies (black soldier fly larvae) vs dried mealworms. Learn which treat delivers more calcium for eggshells and feather regrowth.<\/p>\n","protected":false},"author":1,"featured_media":718,"template":"","meta":{"footnotes":""},"cluster":[14],"risk_level":[3],"review_status":[],"page_type":[],"class_list":["post-677","guide","type-guide","status-publish","has-post-thumbnail","hentry","cluster-feed"],"flockline":{"content_uuid":"","pipeline_id":"","canonical_keyword":"grubbly farms grubblies vs mealworms","cluster":"feed","intent":"comparison","risk_level":"low","review_status":"","reviewer_name":"","vet_approved":false,"evidence_json":"","evidence_reviewed_at":"","freshness_date":"","internal_link_targets":[],"claim_ids":[],"answer_html":"","tool_slug":"","schema_controls":{},"owner_journey":{},"proprietary_asset":{},"visual_diagnosis":{},"cluster_role":{},"community_methodology":{},"first_party_methodology":{}},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.2 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Grubblies vs Mealworms: Chicken Treat Guide - Flockline Learn<\/title>\n<meta name=\"description\" content=\"Compare Grubbly Farms Grubblies (black soldier fly larvae) vs dried mealworms. 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