{
  "presentation": "complete-card",
  "format_version": 3,
  "overview": "A bulk is a gaining phase: eating more energy than you use while strength training to build muscle. Lean usually means gradual gain; dirty often means a larger, loosely controlled surplus and fewer food restrictions. Faster scale gain can mean more fat to lose later.",
  "overview_sources": "Cleveland Clinic · 2026",
  "overview_source_ids": [
    "fit46-lean-vs-dirty-bulk-cleveland-phases"
  ],
  "sections": [
    {
      "role": "explanation",
      "title": "What a gaining phase involves",
      "items": [
        {
          "label": "The surplus is food above maintenance.",
          "text": "Maintenance is the intake that keeps weight broadly stable. Extra energy supports tissue growth and training. Surplus size, food composition and training experience influence what is gained.",
          "source": "ISSN · 2017",
          "source_ids": [
            "fit-rebuild-lean-vs-dirty-bulk-issn-diets"
          ]
        },
        {
          "label": "Lean, clean and dirty are loose gym labels.",
          "text": "Lean usually describes slow gaining with limited fat gain; clean often describes food choices. r/gainit commenters disagree over whether dirty means junk food or a large surplus. The actual eating pattern and weight trend are clearer than the nickname.",
          "source": "Community · Reddit",
          "source_ids": [
            "fit46-lean-vs-dirty-bulk-labels"
          ]
        },
        {
          "label": "The practical tools are a lifting routine, repeatable meals and a trend.",
          "text": "The Fitness Wiki describes consistent resistance training, food tracking when needed and comparable weigh-ins over time. Calculators estimate energy needs; repeated observations show whether the estimate fits. One day's weight cannot settle the question.",
          "source": "The Fitness Wiki",
          "source_ids": [
            "fit46-lean-vs-dirty-bulk-wiki"
          ]
        },
        {
          "label": "Protein is a separate part of the diet.",
          "text": "ISSN gives 1.4–2.0 grams per kilogram of body weight daily for most healthy exercising adults and general meal amounts of 20–40 grams. These ranges do not determine surplus size.",
          "source": "ISSN · 2017",
          "source_ids": [
            "fit-rebuild-lean-vs-dirty-bulk-issn-protein"
          ]
        }
      ]
    },
    {
      "role": "benefits",
      "title": "Why people choose a controlled bulk",
      "items": [
        {
          "label": "More food can support a muscle-building goal.",
          "text": "Training and tissue growth require energy. A surplus can support that goal, though growth without one is possible, particularly with less training experience or more stored body fat. A bulk is one approach to muscle gain, rather than a requirement for everyone.",
          "source": "Stronger by Science · 2022",
          "source_ids": [
            "fit46-lean-vs-dirty-bulk-trexler"
          ]
        },
        {
          "label": "Faster weight gain has a clearer fat-gain tradeoff.",
          "text": "In an eight-week study with 17 trained lifters, faster gaining primarily tracked increased skinfold thickness, a fat measure. Muscle-thickness differences were unclear; the larger-surplus group improved bench strength more. This small study does not establish an optimal surplus.",
          "source": "Helms and colleagues · 2023",
          "source_ids": [
            "fit46-lean-vs-dirty-bulk-surplus-study"
          ]
        }
      ]
    },
    {
      "role": "cautions",
      "title": "Good to know",
      "items": [
        {
          "label": "Food quality still matters during a bulk.",
          "text": "Cleveland Clinic cautions that unrestricted eating can crowd out nutritious foods and cause digestive discomfort. The surplus size and a varied, nourishing menu answer different questions.",
          "source": "Cleveland Clinic · 2023",
          "source_ids": [
            "fit46-lean-vs-dirty-bulk-cleveland-dirty"
          ]
        },
        {
          "label": "Energy needs can make gaining difficult.",
          "text": "ISSN discusses extra everyday movement offsetting an intended surplus. Difficulty gaining does not establish laziness or a sleep problem. An estimated surplus may never have been sustained.",
          "source": "ISSN · 2017",
          "source_ids": [
            "fit-rebuild-lean-vs-dirty-bulk-issn-diets"
          ]
        },
        {
          "label": "Food guilt and repeated panic cuts deserve attention.",
          "text": "Accounts describe force-feeding followed by obsessive restriction. Sharp pain, fainting or disordered-eating concerns need a clinician. Meals do not need to be earned through exercise.",
          "source": "Community",
          "provenance": "preserved-community-record"
        }
      ]
    },
    {
      "role": "community",
      "title": "From community discussion",
      "items": [
        {
          "label": "The familiar numbers describe approaches, not guarantees.",
          "text": "Reports used roughly 200–400 extra calories daily, 0.25–0.5% of body weight weekly and phases of 3–6 months. Some stopped at maintenance. These are reported approaches, not muscle-gain guarantees.",
          "source": "Community",
          "provenance": "preserved-community-record"
        },
        {
          "label": "Family meals can make precise logging impractical.",
          "text": "A parent of two wanted to stop cooking separate meals for calorie logging. Replies split between apps and repeating meals while following weight. One commenter reported going from about 200 to 208 pounds in nine weeks with recurring meals and morning weigh-ins, without calorie counting.",
          "source": "Community · Reddit · 2024",
          "source_ids": [
            "fit46-lean-vs-dirty-bulk-no-tracking"
          ]
        },
        {
          "label": "A stronger bulk can still become uncomfortable.",
          "text": "One person described a year of lean gaining, a two-month cut and five-month dirty bulk. They enjoyed increased strength but eventually found the weight bothersome. Another could maintain without logging yet overshot when trying to gain slowly.",
          "source": "Community · Reddit · 2024",
          "source_ids": [
            "fit46-lean-vs-dirty-bulk-no-tracking"
          ]
        },
        {
          "label": "The first week's scale jump causes confusion.",
          "text": "A poster reported gaining about 10 pounds immediately after a cut. Replies discussed water, stored carbohydrate and food volume, compared seven-day with two-week averages and disagreed about maintenance intervals. None measured that person's muscle or fat change.",
          "source": "Community · Reddit · 2024",
          "source_ids": [
            "fit46-lean-vs-dirty-bulk-weight-noise"
          ]
        },
        {
          "label": "Slow gaining divides people over tracking and patience.",
          "text": "A mini-cut discussion split between small gains with less later dieting and a more noticeable bulk followed by a cut. One participant reported dropping from 205 to 157 pounds after repeated dirty bulks and preferred slow gaining while still eating out with family.",
          "source": "Community · Reddit",
          "source_ids": [
            "fit-bulk-choice"
          ]
        },
        {
          "label": "A detailed food log does not settle the phase choice.",
          "text": "A 19-year-old at 71 kilograms reported four meals, about 2900 calories against guessed 2700 maintenance, and at least 160 grams of protein. Replies disagreed between a small surplus, maintenance and adjusting rice portions from strength and appearance. Another defended calorie counting as a learning tool. The discussion contained no follow-up outcome.",
          "source": "Community · T Nation · 2026",
          "source_ids": [
            "fit-rebuild-lean-vs-dirty-bulk-tnation-bulk"
          ]
        },
        {
          "label": "Strength can rise while weight stays flat.",
          "text": "An X account described a month moving from 2850 to 3000 calories with unchanged weight and increased strength. No waist, training program or food list was recorded; muscle change was unknown.",
          "source": "Community",
          "provenance": "preserved-community-record"
        },
        {
          "label": "Repeating food is easier than repeatedly changing phases.",
          "text": "Diaries used a reliable breakfast, lift log and reassessment date. After about three weeks of flat weight, some added a snack; faster gains prompted smaller portions. Tight clothes, social meals and mini-cuts every three weeks could make the phase stressful.",
          "source": "Community",
          "provenance": "preserved-community-record"
        },
        {
          "label": "Gainer shakes and extra weight bring practical tradeoffs.",
          "text": "Reports used shakes for convenience but sometimes gained faster after adding them without accounting for the food. Other diaries described harder stairs or a higher resting pulse as weight rose; those reports cannot diagnose the cause.",
          "source": "Community",
          "provenance": "preserved-community-record"
        },
        {
          "label": "Reports include pressure on women to avoid bulking.",
          "text": "Some accounts mention women being told not to bulk at all. This describes social pressure, not a training rule.",
          "source": "Community",
          "provenance": "preserved-community-record"
        }
      ]
    }
  ],
  "related": [
    "a-cut",
    "body-recomp",
    "tracking-macros",
    "progressive-overload",
    "mini-cut"
  ]
}
