Okay, I need to create a professional and useful Wikipedia-style document about "혈당" (blood glucose) under the categories of Health, Physiology, and Energy Metabolism. Let me start by understanding the requirements.

First, the structure: H1 for the title, an overview section, several sections with H2 and H3 headings, and maybe a references or related documents section. The content needs to be accurate, objective, detailed enough, easy to read, and use technical terms with explanations. Also, markdown formatting with proper headings, lists, tables, emphasis, and code blocks if needed. The document should be at least 800 characters long.

Starting with the title: "혈당" as H1. Then an introduction that explains what blood glucose is, its importance in energy metabolism, and maybe a brief mention of regulation mechanisms.

Next sections. Maybe start with "정의 및 기능" (Definition and Function). Here, I can explain what blood glucose is, how it's derived from carbohydrates, and its role as the primary energy source for cells. Mention that it's regulated by insulin and glucagon.

Then a section on "생리적 조절 메커니즘" (Physiological Regulation Mechanisms). Break this down into H3 sections like "인슐린과 글루카곤의 작용", "간의 역할", and "신체의 반응". Explain how insulin lowers blood glucose by promoting uptake, glucagon raises it by releasing stored glucose. The liver's role in glycogen storage and release. Also, mention other hormones like cortisol or adrenaline during stress.

Another section could be "혈당 수치의 정상 범위와 이상" (Normal Ranges and Abnormalities). Here, discuss normal fasting levels, postprandial levels, and what happens in hypoglycemia and hyperglycemia. Maybe include a table with ranges for different conditions.

Then maybe a section on "에너지 대사에서의 역할" (Role in Energy Metabolism), explaining how glucose is broken down through glycolysis, the Krebs cycle, and ATP production. Mention the importance of maintaining stable levels for cellular function.

A section on "혈당 조절 장애와 질환" (Disorders Related to Blood Glucose Regulation) could cover diabetes mellitus types 1, 2, gestational diabetes, and other conditions like hypoglycemia. Explain causes, symptoms, and management.

Include a references or related documents section with links to medical guidelines, research papers, or related topics like insulin resistance or the HbA1c test.

I need to make sure technical terms are explained. For example, when mentioning "glycolysis," briefly explain it's the breakdown of glucose into pyruvate for energy. Use bullet points or tables where appropriate. Check that each section flows logically and covers all necessary aspects without being too verbose.

Also, ensure the document meets the 800-character minimum. Let me count: the example provided in the user's previous response was around 1200 characters, so I need to make sure mine is at least that. Use clear headings, avoid redundancy, and provide comprehensive yet concise information.

Check for accuracy: normal blood glucose levels are typically 70-99 mg/dL fasting, 140 mg/dL postprandial. Hypoglycemia is below 70, hyperglycemia above 126 fasting or 180 postprandial. Mention the role of insulin and glucagon in detail.

Avoid markdown syntax errors. Use proper H1, H2, H3 tags. Maybe include a table for normal ranges. Ensure that each section is well-structured with subheadings where necessary.

Finally, review the document to ensure it's professional, informative, and meets all user requirements.