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What Is Diabetes? A Clear Guide to Your Next Steps

Alexandra Santamaria, PharmD, CDCES · Santamaria Health Solutions
Originally published 2024-09-11 · Updated November 6, 2026 · 7 min read

In this article

A diabetes diagnosis can make an ordinary day feel very different. Suddenly, meals, medications, and a page of lab results may seem full of decisions you do not feel ready to make. You might wonder whether you caused this, whether you will need insulin, or whether life will ever feel normal again.

Start here: diabetes is a health condition, not a character judgment. You do not need to understand everything today. You need a clear explanation, a safe treatment plan, and people who can help you use that plan in daily life.

This guide explains the main types of diabetes and the first conversations worth having. It is especially useful if you are newly diagnosed or helping someone understand their diagnosis.

What happens inside the body?

Glucose, also called blood sugar, supplies energy. Your body gets glucose from food and also releases it from stored supplies, mainly in the liver. This is why your glucose can rise even when you have not recently eaten.

Insulin is a hormone made by the pancreas. It helps glucose move from the bloodstream into cells. Diabetes develops when the body makes too little insulin, cannot use it well, or both. Glucose then remains in the blood at levels that can affect health over time. [1]

Knowing this helps explain an important point: diabetes is not simply the result of eating sweets. Food matters, but so do genetics, insulin production, other illnesses, medications, and the way the body responds to insulin.

The main types are different

Type 1 diabetes is usually caused by the immune system attacking the cells that make insulin. It can begin at any age, including adulthood. People with type 1 need insulin to live. Nutrition, activity, and education support care, but they do not replace insulin. Some adults develop autoimmune diabetes more slowly, which can initially make the diagnosis less obvious. [1],[2]

Type 2 diabetes involves insulin resistance and difficulty producing enough insulin to meet the body's needs. It is the most common type. Treatment may include food and activity changes, medicines taken by mouth or injection, and insulin. Needing medication does not mean a person has failed. [1]

Gestational diabetes is diagnosed during pregnancy in someone who did not already have diabetes. It needs a pregnancy-specific care plan. Blood sugar often improves after delivery, but follow-up testing remains important because future type 2 diabetes risk is higher. [1]

There are other causes of diabetes, too. If your treatment does not seem to fit your situation, ask whether additional testing could help clarify the type. Age or body size alone cannot answer that question.

Symptoms can be obvious—or easy to miss

Increased thirst, frequent urination, tiredness, blurry vision, and unexplained weight loss can occur with diabetes. Some people have few symptoms and learn about it through routine testing. Feeling well does not always mean glucose is in range. [3]

A home meter or continuous glucose monitor can provide useful information, but diagnosis belongs with a healthcare professional using appropriate blood tests. If you notice new symptoms, arrange an assessment instead of trying to diagnose yourself from a single reading. [4]

Get urgent medical help for severe symptoms such as vomiting with an inability to keep fluids down, trouble breathing, marked confusion, or signs of a serious diabetes emergency. Diabetic ketoacidosis can be life-threatening and needs immediate treatment. [5]

Diagnosis is the beginning of a plan

Your clinician may use A1c, fasting plasma glucose, or another blood test. A1c reflects average glucose over roughly three months. A fasting test measures glucose at one point after at least eight hours without calories. When symptoms are absent, an abnormal result usually needs confirmation. [4]

Ask for a copy of your results and write down the name of your diabetes type. These details are easy to forget when an appointment feels overwhelming. Bring the results to follow-up visits so the team can explain changes over time.

Useful questions include: “What confirmed my diagnosis?” “What is my treatment goal?” and “When should we meet again?” You deserve answers in language you can understand.

Build care around your actual life

A good plan considers your work hours, food budget, family responsibilities, physical limits, and preferences. A plan that assumes unlimited time and money is hard to follow, even when the medical advice is sound.

For example, someone who works late may need practical meal options and medication timing advice. Someone with painful joints may need seated movement options. Someone who is worried about medication cost may need help finding an affordable alternative before the prescription goes unfilled.

Tell your care team where the plan is difficult. Specific information makes it easier to solve the right problem. “I miss lunch three days a week because of work” is more useful than “I need to do better.”

Food, movement, and medicines work together

There is no single meal pattern that works for everyone. Start by discussing meals you already eat. A dietitian or diabetes educator can help you adjust portions, include fiber and protein, and plan carbohydrates without making every meal a test of willpower.

Movement should fit your abilities and treatment. If your medicines can cause low blood sugar, ask what to check and what to carry before being more active. Do not use exercise to punish yourself for food choices or a high reading.

Medication decisions also deserve a clear explanation. Ask what each medicine does, how to take it, which side effects to report, and what to do if you miss a dose. A pharmacist can help you understand instructions and identify questions for the prescriber.

Can type 2 diabetes go into remission?

Some people with type 2 diabetes achieve remission. The international consensus definition generally uses an A1c below 6.5% for at least three months without usual glucose-lowering medication. Remission is not a cure, and ongoing monitoring is still needed. [6]

There is no simple deadline after which improvement becomes impossible. Duration of diabetes can affect the likelihood of remission, but it should not be used to promise success or dismiss someone's potential for progress.

Never stop medication to test whether you are in remission. Your clinician should guide changes. Better glucose patterns, fewer symptoms, improved strength, and a manageable routine remain valuable goals whether or not remission occurs.

A practical first-week checklist

Choose a few tasks rather than trying to change everything:

Keep the list somewhere you will actually see it. A note on your phone or a small notebook can work. The best tracking system is the one that does not become another burden.

Prepare for a useful follow-up conversation

Imagine you leave an appointment with three instructions: take a new medicine, check glucose, and change your meals. Before the next visit, record what happened with each instruction. Was the prescription affordable? Did the meter instructions make sense? Which meals were hardest to plan?

Bring those observations without apologizing for them. They show where support is needed. If you could not start something, say so. Your team cannot safely judge a treatment's effect without knowing what you were actually able to do.

Ask to repeat the plan in your own words before leaving: “My next step is this, and I should call if this happens.” This simple habit can uncover confusion while help is still available.

Support belongs in the treatment plan

Living with diabetes involves decisions that other people may never see. Feeling tired of those decisions is understandable. Ask about diabetes self-management education and support, nutrition counseling, or mental health support if worry or burnout makes care harder.

You can also decide what kind of help you want from people around you. A family member might join a walk, share meal preparation, or simply listen. Helpful support respects your choices and avoids policing your food.

Your next step does not have to be dramatic. It needs to be clear enough to start and realistic enough to repeat.

Sources

  1. NIDDK: What Is Diabetes?
  2. NIDDK: Type 1 Diabetes
  3. NIDDK: Symptoms and Causes
  4. NIDDK: Tests and Diagnosis
  5. CDC: Diabetic Ketoacidosis
  6. ADA: Diabetes Remission Criteria

Educational information; not individualized medical advice. Follow your healthcare team’s treatment and emergency plans.