Introduction

People say "diabetes" like it is one thing, and every clinic day I have to gently take that apart for someone. A high blood sugar reading is just the symptom. What is actually going on underneath it can be quite different from one person to the next, because diabetes is really a family of conditions that all end up in the same place, insulin either missing or not working properly, by very different roads. Knowing which road you or your child are on changes almost everything about what happens next, so let me walk you through the main ones.

Type 1

This is the one where the immune system turns on the cells in the pancreas that make insulin and wipes them out, so insulin production drops to almost nothing. It tends to show up in children and younger people, though it can start at any age, and it tends to arrive fast, over weeks rather than years, with a lot of thirst, weeing, and weight falling off. From the moment it is caught, insulin is needed, by injection or a pump, and there is no working around that with diet alone.

Type 2

This is the common one, and it builds slowly, sometimes over a decade before anyone notices. The pancreas is still making insulin, plenty of it in fact, but the body has grown resistant to it, so sugar creeps upward year after year. Weight, inactivity, getting older and family history all feed into it. The genuinely hopeful part is that early on, type 2 can often be slowed, stopped, or in some cases pushed back with weight loss, movement and better sleep, which is simply not on the table with type 1.

LADA, sometimes called type 1.5

This one confuses a lot of people, including some doctors seeing it for the first time. It is autoimmune, the same underlying process as type 1, but it shows up in adults and moves far more slowly, so at first it looks exactly like ordinary type 2. The giveaway is usually a normal body weight paired with antibodies against the pancreas showing up on a blood test. Insulin often is not needed straight away here, but because the process is the same as type 1, it usually is needed eventually.

Turn what you just learned into a daily habit — Flona helps you apply it to real meals and doses.

Get the app

Gestational diabetes

This shows up during pregnancy, when the hormones of pregnancy itself push the body toward insulin resistance. For most women it settles down again after the baby arrives. What it leaves behind, though, is a real signal, a higher chance of type 2 diabetes later on for both mother and child, which is exactly why the follow-up checks afterward matter more than they might seem to at the time.

The rarer ones worth knowing exist

There are a handful of less common forms too, including a single-gene type called MODY, and diabetes that follows on from chronic pancreas problems or from certain medicines like steroids. None of these are common, and you are unlikely to come across them, but if your picture just does not fit the usual pattern your doctor is describing, it is worth asking whether one of these has been considered.

Key points

  • Diabetes is not one illness. It is several different conditions that all end in the same place, insulin missing or not working, by different roads.
  • Type 1 is autoimmune and arrives fast, usually in the young, and needs insulin from day one. There is no reversing it with diet.
  • Type 2 builds slowly from insulin resistance and, caught early, can genuinely be slowed or turned back with weight, movement and sleep.
  • LADA looks like type 2 at first, in an adult of normal weight, but it is really a slow-moving type 1 underneath.
  • Gestational diabetes usually settles after birth, but it is a real warning sign for type 2 later, for mother and child both.