Can I Eat · Blog
8 Everyday Drinks: A Guide to Better Choices
Editorial guidance · No individual clinical review
When you want to eat better, it is easy to focus on your plate. Your everyday drink deserves a look, too—especially if sweetened drinks are a regular habit.
At a glance
Start with water. Unsweetened drinks can add variety, but caffeine, ingredients, and your health needs matter. These eight options are a guide to choosing, not a health ranking.
1. Water: a simple everyday starting point
Water provides hydration without sugar or calories. Keep it within reach, serve it with meals, or add a slice of lemon if you prefer a little flavor.
If your care team has given you a fluid limit, follow that plan rather than trying to hit a generic daily water target.
Sources: Diabetes UK
2. Plain sparkling water: bubbles without the sugar
Unsweetened sparkling water can replace soda when you want something fizzy. Check the label: flavored sparkling water, tonic water, and sweetened fizzy drinks are not interchangeable.
Look at the sugar and carbohydrate content for the amount you will actually drink. “No added sugar” does not always mean a drink contains no sugar.
Sources: Diabetes UK
3. Rooibos tea: an option without the coffee kick
Plain rooibos is a naturally caffeine-free herbal infusion. Enjoy it hot or iced, without adding sugar or syrup.
Check blended teas for other ingredients. A pleasant flavor is reason enough to enjoy a drink; claims about antioxidants do not establish that it treats a health condition.
4. Buckwheat tea: a toasted, nutty change
Roasted buckwheat tea offers a mild, nutty flavor. A pure buckwheat infusion does not contain caffeine, but blends may include caffeinated tea.
Check the full ingredient list and avoid it if you have a buckwheat allergy. A tea made from a food is not automatically safe for someone allergic to that food.
5. Barley tea: check whether gluten matters to you
Roasted barley tea can be served warm or chilled. Choose an unsweetened version and check blends for caffeine-containing ingredients.
Barley contains gluten. If you have celiac disease or need to avoid gluten, skip barley tea and choose a suitable alternative. Brewing does not make barley a gluten-free ingredient.
Sources: NIDDK
6. Black bean tea: read the ingredient name
This roasted infusion can offer another unsweetened option. Products sold as black bean tea may use black soybeans, so the name alone does not tell you which bean is inside.
Check the ingredient and allergen information, especially if you have a soy or other bean allergy. Do not assume that drinking the infusion gives you the fiber or protein of a serving of whole beans.
7. Corn silk tea: a herbal drink that needs extra care
Corn silk tea is traditionally made from the threadlike strands on an ear of corn. Tradition alone does not establish that it lowers blood sugar, blood pressure, or cholesterol.
The European Medicines Agency’s corn silk assessment is still a draft under discussion. It should not be read as approval of those health claims.
We would not make it a default daily drink. If you are pregnant, breastfeeding, taking medication, or managing kidney or heart disease, ask a clinician or pharmacist before using it regularly.
8. Black coffee: the preparation and your response matter
For people who enjoy and tolerate coffee, an unsweetened cup can fit into their routine. Adding sugar, syrup, or sweetened cream changes what is in the cup.
Research linking coffee with a lower risk of developing type 2 diabetes does not show that coffee treats existing diabetes. Caffeine can change blood glucose in some people with diabetes; responses vary.
If glucose control is a concern, discuss your caffeine intake with your diabetes team. Decaf may suit you better, although it still contains some caffeine.
If cholesterol is a concern, consider paper-filtered coffee. Paper filters remove much of the cafestol and kahweol found in coffee oils. That is a brewing choice, not a substitute for cholesterol treatment.
Sources: Mayo Clinic · FDA · Uppsala University
Before you make a drink a daily habit
- Check the full serving: sugar, total carbohydrate, caffeine, and ingredients can vary between brands and cup sizes.
- Count caffeine across the day. The FDA cites 400 mg a day as an amount not generally associated with negative effects for most adults—not a target or a limit that suits everyone.
- In pregnancy, NHS guidance limits total caffeine to 200 mg a day. Herbal tea ingredients need checking too; caffeine-free does not automatically mean suitable for pregnancy.
- If a drink affects your sleep or makes you feel jittery, try less, choose decaf, or switch to water.
The bigger picture
No single drink can manage diabetes, blood pressure, or cholesterol on its own. Food choices, movement, sleep, and prescribed treatment all belong in the conversation.
A practical first step is to replace one everyday sugary drink with water or an unsweetened option you enjoy. Do not stop or change medication without speaking with your clinician.
These are everyday drink suggestions, not treatment for low blood sugar. If you have hypoglycemia, follow the treatment plan from your diabetes team.
Sources: Diabetes UK
Sources and editorial notes
Based on the linked US, UK, and European sources. Guidance may differ locally. Prepared with AI assistance; no individual clinical review. Editorial policy
- Diabetes UK — What to drink when you have diabetes
- Mayo Clinic — Caffeine: Does it affect blood sugar?
- FDA — Spilling the Beans: How Much Caffeine is Too Much?
- Uppsala University — Coffee brewing methods and cholesterol-elevating substances
- NIDDK — Eating, Diet, & Nutrition for Celiac Disease
- EMA — Maydis stigma (corn silk): draft under discussion
- NHS — Foods to avoid in pregnancy: caffeine and herbal teas
Which choice fits your health needs?
Add your health conditions and allergies to Can I Eat, then search for a food or scan what you plan to eat. The app offers AI-generated guidance based on your profile to help you identify what to check.
AI guidance can be wrong. Check ingredient labels and use your care team’s advice for medication, severe allergies, and individual treatment decisions.