Keto Drinks: 15 Low-Carb Options (and What to Avoid)

The best keto drinks are water, sparkling water, black coffee, unsweetened tea, and diet or zero-sugar sodas — all essentially zero carbs. Add electrolytes to your water to feel your best, and for alcohol pick dry wine or spirits with zero-carb mixers. Avoid fruit juice, regular soda, sweetened coffee drinks, and most smoothies, which are sugar bombs in disguise.

Staying in ketosis isn't just about what's on your plate — what's in your glass matters just as much. A single sweetened latte or glass of orange juice can quietly use up an entire day's carb budget. The good news: the everyday basics are almost all zero-carb, and there's a keto-friendly version of nearly every drink you love. Below, 15 common drinks ranked by net carbs, plus what to reach for and what to skip.

Keto drinks ranked by net carbs

Net carbs = total carbs minus fiber. These are typical values per standard serving. You can log any of them in CarbMeNot to see exact net carbs for the brand and portion you're drinking.

Drink	Net carbs (per serving)	Keto-friendly?
Water	0g	Yes
Black coffee	0g	Yes
Unsweetened tea	0g	Yes
Diet / zero soda	0g	Yes
Sparkling water (plain)	0g	Yes
Bulletproof coffee	~1g	Yes
Unsweetened almond milk	~1g	Yes
Dry wine	~2g per glass	Yes
Light beer	~3-6g	In moderation
Kombucha	~7-12g	Limit
Sweet tea	~22g	Avoid
Orange juice	~26g	Avoid
Smoothie (typical)	~40g+	Avoid
Regular soda	~39g	Avoid

Browse the full drinks carb database for brand-by-brand serving breakdowns.

Best keto drinks

These are the drinks you can have freely, without touching your carb budget:

• Water (0g): The MVP of any keto diet. Ketosis is mildly dehydrating because your body flushes more water and sodium, so aim higher than usual — and add electrolytes (more on that below).
• Sparkling water (0g): Plain or naturally flavored sparkling waters like LaCroix, Topo Chico, and Bubly are zero-carb and the easiest swap for soda. Just confirm there's no added sugar or juice.
• Black coffee (0g): Carb-free and a genuine ketosis ally thanks to caffeine. The trouble is what you add to it.
• Unsweetened tea (0g): Green, black, herbal, hot or iced — as long as it's unsweetened, it's free. Sweet tea is a different story.
• Diet and zero sodas (0g): Diet Coke, Coke Zero, Diet Pepsi, and brands like Zevia all clock in at 0g net carbs.

Keto coffee and tea

Plain coffee and tea are zero-carb, so the entire game is the add-ins. A flavored syrup pump can carry 5g of sugar each, and a sweetened bottled creamer can hide more sugar than you'd expect.

Bulletproof coffee is the classic keto upgrade: black coffee blended with grass-fed butter and MCT oil (or coconut oil). It's high in fat, near-zero carbs (~1g), and keeps you full for hours — popular for fasting and morning energy. It won't break ketosis; just remember it adds real calories, so it's a meal replacement, not a free add-on.

For everyday coffee, the keto-friendly creamers are:

• Heavy cream (~0.4g per tablespoon) — rich and minimal carbs.
• Unsweetened almond or coconut milk (~1g) — lighter, dairy-free.
• A keto sweetener in place of sugar — erythritol, monk fruit, or stevia. See our best keto sweeteners guide for which ones taste best and won't spike blood sugar.

Skip the bottled "vanilla" and "caramel" creamers and any drive-thru drink built on syrup unless you ask for the sugar-free version.

Keto-friendly alcohol

Alcohol is allowed in moderation, but it pauses fat-burning while your liver processes it, so keep it occasional. Stick to these:

• Pure spirits (0g): Vodka, gin, whiskey, tequila, and rum are zero-carb on their own. Mix with soda water, diet tonic, or a splash of lime — never regular tonic, juice, or sugary mixers.
• Dry wine (~2g per glass): Dry reds (Pinot Noir, Cabernet) and dry whites (Sauvignon Blanc, Pinot Grigio) are the most keto-friendly wines. Sweet and dessert wines are far higher.
• Light and low-carb beer (~3-6g): Regular beer ("liquid bread") is too carb-heavy for keto, but light and specialty low-carb beers can fit. See our low-carb beer guide for the lowest-carb picks ranked.

What to avoid: regular beer, sweet wine, and cocktails like margaritas, daiquiris, and anything pre-mixed — these can run 20-40g of carbs each.

Drinks to avoid

These are the ones that quietly wreck a keto day:

• Regular soda (~39g): A single 12 oz can is roughly 39g of sugar — nearly two days of carbs for many keto eaters. Always reach for the diet or zero version.
• Orange juice and fruit juice (~26g): "Natural" doesn't mean low-carb. Juice is concentrated fruit sugar with the fiber stripped out.
• Sweet tea (~22g): All the carbs of soda in a glass that feels healthier. Brew it unsweetened instead.
• Smoothies (~40g+): Even "green" smoothies are usually loaded with banana, mango, and juice. Most are dessert-level carb counts.
• Sweetened coffee drinks: A flavored latte or frappuccino can hit 40-60g of carbs.
• Kombucha (~7-12g): Often marketed as a health drink, but added sugar feeds the fermentation. Doable in small amounts, but check the label.

Electrolytes on keto

When you cut carbs, your body holds less water and excretes more sodium, potassium, and magnesium. That mineral drop — not the lack of carbs itself — is what causes the headaches, fatigue, and cramps people call the "keto flu."

The fix is simple: salt your food and your water. A practical daily target is extra sodium (a few pinches of salt in water, or broth), plus potassium and magnesium from food or a supplement. Sugar-free electrolyte powders and zero-carb sports drinks make this easy and turn plain water into something you'll actually want to drink. A cup of warm broth is an old-school, zero-carb electrolyte fix that works just as well.

Track your drinks too

It's easy to count what you eat and forget what you sip — and drinks are where hidden carbs hide. With the CarbMeNot app you can log a coffee, a cocktail, or a bottled drink in seconds: search it or snap a photo of the label, set your portion, and see the net carbs instantly. No mental math, no nasty surprises. It's the simplest way to keep your glass from knocking you out of ketosis.

Key takeaways

• Water, sparkling water, black coffee, unsweetened tea, and diet/zero sodas are all ~0g net carbs and fully keto.
• Coffee and tea are free — it's the sugar, syrups, and sweetened creamers that aren't. Use heavy cream, unsweetened nut milk, or a keto sweetener.
• For alcohol, choose dry wine (~2g) or pure spirits (0g) with zero-carb mixers; skip sugary cocktails and regular beer.
• Avoid regular soda (~39g), fruit juice (~26g), sweet tea, and most smoothies — they're sugar bombs.
• Add electrolytes (sodium, potassium, magnesium) to fight the keto flu, and log your drinks with CarbMeNot to stay on track.