"an apple a day" meaning in English

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  "etymology_text": "Shortened form of the proverb an apple a day keeps the doctor away.",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "Healthy eating and living using traditional temperate-zone fresh foods."
      ],
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        "(idiomatic, abstractly) Healthy eating and living using traditional temperate-zone fresh foods."
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      "translations": [
        {
          "code": "da",
          "lang": "Danish",
          "sense": "healthy eating and living",
          "word": "et æble om dagen"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "healthy eating and living",
          "word": "una mela al giorno"
        },
        {
          "alt": "いしょくどうげん",
          "code": "ja",
          "lang": "Japanese",
          "roman": "ishokudōgen",
          "sense": "healthy eating and living",
          "word": "医食同源"
        },
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          "lang": "Norwegian Bokmål",
          "sense": "healthy eating and living",
          "word": "et eple om dagen"
        }
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  "word": "an apple a day"
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  "etymology_text": "Shortened form of the proverb an apple a day keeps the doctor away.",
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  "lang_code": "en",
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        "Healthy eating and living using traditional temperate-zone fresh foods."
      ],
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  "translations": [
    {
      "code": "da",
      "lang": "Danish",
      "sense": "healthy eating and living",
      "word": "et æble om dagen"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "healthy eating and living",
      "word": "una mela al giorno"
    },
    {
      "alt": "いしょくどうげん",
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      "lang": "Japanese",
      "roman": "ishokudōgen",
      "sense": "healthy eating and living",
      "word": "医食同源"
    },
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      "code": "nb",
      "lang": "Norwegian Bokmål",
      "sense": "healthy eating and living",
      "word": "et eple om dagen"
    }
  ],
  "word": "an apple a day"
}