Being sick with type 2 diabetes is unfair because it’s not just “I feel awful.” It can also mean your blood sugar runs higher, you’re less hungry, you’re more dehydrated, and your usual routine falls apart.
This post is a simple, practical guide for what to eat when you’re sick—especially when you don’t feel like eating much—so you can support your body and avoid extra blood sugar chaos.
(General education only, not medical advice. If you use insulin or medications that can cause lows, follow your clinician’s sick-day instructions. Seek urgent care if you feel seriously unwell or your clinician recommends it.)
Why blood sugar often runs high when you’re sick
When you’re sick, your body releases stress hormones to help you fight illness. Those hormones can:
- raise blood sugar
- increase insulin resistance
- disrupt sleep and appetite
- make you dehydrated
So if your numbers are higher than usual while you’re sick, it’s not a personal failure. It’s a very common biological response.
The 3 sick-day priorities (keep it simple)
1) Hydration
Dehydration can make you feel worse and can push numbers higher.
Try:
- water
- unsweetened tea
- broth
- sugar-free electrolyte drinks (if you like them)
Small sips often are better than trying to chug.
2) “Enough” food (even if it’s not perfect)
When you’re sick, the goal is:
- prevent getting too weak
- prevent wild hunger swings later
- support recovery
3) Easy, repeatable choices
This is not the week for complicated cooking.
What to eat when you’re sick (best options)
If you can eat normally: aim for protein + easy fiber
Choose “soft and simple” meals that follow the Plate Method as much as you can:
- eggs + sautéed spinach or frozen veg
- chicken + soup veggies (broth-based)
- chili or lentil soup (smaller carb load than many comfort foods)
- tuna/chicken salad over cabbage or bag salad
- Greek yogurt + cinnamon (add a few berries if tolerated)
Why these help: protein supports fullness and steadier blood sugar, and soup-style meals are easier on the stomach.
If your stomach is off: use the “sick-day plate”
When appetite is low or nausea is high, think in small steps:
Step A: Fluids first
Water, tea, broth.
Step B: Add a little protein
- Greek yogurt
- cottage cheese
- scrambled eggs
- a little shredded chicken
- tofu in broth
Step C: Add gentle carbs if needed
Some people do better with a small amount of bland carbs when sick (and some meds require you to eat).
Options:
- small portion of oats
- a slice of toast
- crackers (paired with protein if possible)
- banana (small) with peanut butter if tolerated
The goal is not “no carbs.” The goal is “carbs that don’t turn into a rollercoaster.”
“I can’t cook at all” sick-day meals (minimal effort)
- rotisserie chicken + bag salad
- microwave frozen veg + scrambled eggs
- canned soup upgraded with extra frozen veg + an egg (egg-drop style)
- tuna pouch + crackers + cheese (or yogurt)
- yogurt + nuts (if tolerated)
- bean/tomato soup (dump-and-simmer)
(Internal link idea: “10-Minute Dinners,” “Pantry Dinners.”)
What to drink (and what to watch)
Good choices:
- water
- broth
- unsweetened tea
- coffee (if it doesn’t worsen symptoms)
- sugar-free electrolytes
Be cautious with:
- juice (often spikes quickly)
- regular soda (same)
- “wellness” drinks with hidden sugar
If you’re struggling to keep fluids down, focus on tiny sips frequently.
If you’re not eating much, how do you avoid the snack spiral later?
This is common: you barely eat all day, then your appetite returns at night and things get chaotic.
Try:
- a small protein option every few hours (yogurt, egg, broth with chicken)
- soup instead of skipping meals entirely
- keep one planned “easy carb” option available if needed (toast/oats portion)
What to track while you’re sick (keep it low-stress)
If you track anything, track:
- your symptoms
- hydration
- your blood sugar trend (not every 10 minutes)
- what you’re able to eat
This helps you notice patterns and know when you’re improving.
When to contact your clinician
Follow your care team’s rules. In general, get medical advice if you:
- can’t keep fluids down
- have worsening symptoms
- have persistently very high readings compared to your normal pattern
- feel confused, very weak, or severely dehydrated
You don’t have to “tough it out.”
Your sick-day grocery mini-list (cheap + helpful)
Keep a few of these around for sick weeks:
- broth
- canned soup (watch sugar; add frozen veg)
- eggs
- Greek yogurt/cottage cheese
- canned tuna/chicken
- frozen vegetables
- oats
This prevents last-minute expensive delivery orders when you feel terrible.
BFF reminder
When you’re sick, your job is not perfect diabetes management. Your job is: hydrate, eat something supportive, and recover. You can fine-tune again when you’re well.
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