Oolong tea is excellent for keto—~0.3g net carbs per 100ml. You get a gentle caffeine lift plus polyphenols with virtually no impact on carbs or calories.
Is Oolong Tea Keto?
Coffee & Tea

KETO VERDICTYES
Oolong tea is excellent for keto—~0.3g net carbs per 100ml. You get a gentle caffeine lift plus polyphenols with virtually no impact on carbs or calories.
- Net carbs (100g)0.3g
- Protein (100g)0g
- Fat (100g)0g
- Keto verdictKeto-friendly
NUTRITION FACTS
Per 100g (raw)
Net Carbs
0.3g
Total Carbs
0.3g
Fiber
0g
Protein
0g
Fat
0g
Calories
1
Source: USDA FoodData Central
WHY IT'S KETO-FRIENDLY
- Very low carbs: ~0.3g net per 100ml (~0.7g in a 240ml cup)
- Moderate caffeine can support alertness and workout performance
- Polyphenol-rich (catechins/theaflavins) with minimal calories
- Unsweetened versions contain no sugar
- Can replace higher-carb drinks without sacrificing flavor
- Satisfying, full-bodied taste with no additives required
HEALTH BENEFITS
- Rich in tea polyphenols (catechins, theaflavins) with antioxidant activity
- May modestly support fat oxidation (caffeine + polyphenols)
- Potential cardiovascular benefits (lipid and endothelial markers)
- Caffeine can aid focus and perceived energy
- May support insulin sensitivity and glycemic control in some contexts
- Hydrating, ultra–low calorie beverage for daily routines
PREPARATION SUGGESTIONS
HOT BREW
Steep ~1 tsp leaves in 200ml water at 85–95°C for 2–4 minutes; adjust to taste.
ICED
Brew hot, cool, then pour over ice for a crisp, refreshing drink.
EXTENDED STEEP
Steep 5–7 minutes for a stronger cup; note this may increase bitterness.
MULTIPLE INFUSIONS
Re-infuse the same leaves 2–3 times; slightly lengthen each subsequent steep.
WITH LEMON
Add a squeeze of lemon for brightness; enjoy unsweetened to keep carbs negligible.
AFTERNOON DRINK
Great mid-day pick-me-up when you want less caffeine than coffee.