Diabetics need more water than non-diabetics — and most aren't drinking enough.
Why more water matters with diabetes
- High blood sugar makes you urinate more, losing fluid
- Dehydration concentrates glucose, raising readings
- Many diabetes medications (especially SGLT-2 inhibitors) increase urination
- Kidneys need adequate flow to clear excess glucose
Daily targets
### Baseline Half your body weight in ounces: - 150 lb → 75 oz - 200 lb → 100 oz
### Add water if you: - Have high blood sugar (above 180 mg/dL): +16 oz - Live in hot/humid climate: +16–32 oz - Exercise regularly: +16 oz per workout - Drink coffee or alcohol: +8 oz per cup/drink - Take SGLT-2 inhibitors (Jardiance, Farxiga, Invokana): +16–24 oz
How to know you're hydrated
- Pale yellow urine (apple juice color is too dark)
- 5–8 urinations per day
- No persistent thirst
- Skin returns to position quickly when pinched
- No headaches
Best hydration drinks
- Water (still or sparkling)
- Unsweetened tea (any kind)
- Black coffee (in moderation)
- Bone broth
- Coconut water (limit to 8 oz, has carbs)
- Electrolyte drinks without sugar (LMNT, Ultima, Liquid IV Sugar-Free)
Worst options
- Sugary sodas, juices, sports drinks
- Sweetened coffee/tea drinks
- Alcohol (net dehydrating)
- Diet soda as sole hydration (use sparingly)
Tactics to drink more
- Start every day with 16 oz before coffee
- Carry a 32 oz bottle and refill twice
- Habit-stack: drink water before every coffee
- Set phone reminders if needed
- Add electrolytes to make plain water more drinkable
- Sparkling water with fruit slices for variety
When too much is too much
Hyponatremia (low sodium) from over-hydration is rare but real. If you drink 100+ oz daily, add a pinch of sea salt to morning water or use an electrolyte mix.
Hydration + Carb Lens
When you log meals, the scanner reminds you to add a glass of water before eating — small habit, real impact on post-meal glucose.