"dietarian" meaning in English

{
  "forms": [
    {
      "form": "dietarians",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "dietarian (plural dietarians)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Nutrition",
          "orig": "en:Nutrition",
          "parents": [
            "Health",
            "Body",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1871, George Miller Beard, Eating and Drinking",
          "text": "There are many who are dietarians in theory, but liberal feeders in practice. They suppose or maintain that it is a duty to deny oneself of all luxuries at the table, but practically they take the best that they can get.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Somebody following a diet; a dieter."
      ],
      "id": "en-dietarian-en-noun-e0GSkGXN",
      "links": [
        [
          "diet",
          "diet"
        ],
        [
          "dieter",
          "dieter"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ɛəɹiən"
    }
  ],
  "word": "dietarian"
}

{
  "forms": [
    {
      "form": "dietarians",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "dietarian (plural dietarians)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English nouns",
        "English terms with quotations",
        "Rhymes:English/ɛəɹiən",
        "Rhymes:English/ɛəɹiən/5 syllables",
        "en:Nutrition"
      ],
      "examples": [
        {
          "ref": "1871, George Miller Beard, Eating and Drinking",
          "text": "There are many who are dietarians in theory, but liberal feeders in practice. They suppose or maintain that it is a duty to deny oneself of all luxuries at the table, but practically they take the best that they can get.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Somebody following a diet; a dieter."
      ],
      "links": [
        [
          "diet",
          "diet"
        ],
        [
          "dieter",
          "dieter"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ɛəɹiən"
    }
  ],
  "word": "dietarian"
}