Matcha on keto: macros, how to make it and recipes

Matcha on keto: macros, how to make it and recipes

Pure matcha fits any carbohydrate allowance, and the nutrition panel proves it. A 2 g bowl carries roughly 0.4 g of carbohydrate and about 6 kcal. What breaks the maths is never the powder. It is the syrup, the honey, the sweetened plant milks and the instant blends with an ingredient list longer than the recipe.

This page covers how matcha fits a ketogenic diet, what published trials actually measured, what to combine it with and, above all, what to leave out.

What separates matcha from an infusion

Matcha is very finely milled green tea from shade-grown leaf, stone milled slowly. Unlike an infusion, you drink the whole leaf as powder, so catechins, theanine, chlorophyll and fibre end up in the bowl rather than in a teabag in the bin.

When people say keto matcha they are not describing a different plant, only a way of preparing it. Neat, unsweetened and unblended, matcha is effectively carbohydrate free. Everything after that depends on your hand at the sweetener jar.

Why the macros work

A 2 g bowl of pure matcha provides about 0.4 g of carbohydrate, 0.4 g of protein, next to no fat and around 6 kcal. It is one of very few drinks with real flavour that takes almost nothing out of a strict daily allowance, and it contains no sugar unless you add it.

1. What is in it: catechins, and how many

Matcha is rich in catechins, especially EGCG (epigallocatechin gallate). The quantity comes from an analytical paper in the Journal of Chromatography A in 2003 (Weiss and Anderton, PMID 14518774), which quantified five catechins and the caffeine content of matcha by micellar electrokinetic chromatography and measured, per gram of dry leaf, an EGCG concentration 137 times higher than the green tea China Green Tips.

What those catechins do in a person in ketosis has not been studied. There are trials in other populations with other outcomes, and they are below. Plus one regulatory note worth carrying with you around any matcha website:

• Regulation (EC) 1924/2006 governs what may be claimed about a food and health, and article 12.b prohibits certain promises expressly.
• The Union list contains no authorised claim for green tea or for matcha.
• So on this page you will read what each study measured and in whom, not what will happen to you.

2. Caffeine and L-theanine: what was measured

Many people try matcha because it carries caffeine plus L-theanine, an amino acid characteristic of the tea leaf that coffee does not have. A 2 g bowl provides around 48 mg of caffeine, roughly half a 240 ml cup of coffee.

• A randomised placebo-controlled trial in Nutrition Research (2021, Baba et al., PMID 33744591) gave 42 adults aged 25 to 34 two grams of matcha daily for two weeks and measured reaction times in the Stroop test after a stress task.
• A systematic review with meta-analysis of 50 randomised trials in healthy people in Nutrition Reviews (2025, Payne et al., PMID 40314930) measured attention and mood in the first and second hour after intake, and stresses that the confidence intervals leave the size of the effect in doubt.
• Neither was carried out in people in ketosis.

3. Blood lipids: the published work is on green tea

A systematic review with meta-analysis of 31 randomised trials and 3,321 subjects published in Nutrition Journal in 2020 (Xu et al., PMID 32434539) compared total cholesterol, LDL, HDL and triglycerides in green tea drinkers against controls. That is green tea in general, not matcha, and the participants were not eating ketogenically.

One practical observation with no pretensions attached: people new to keto often neglect the vegetable half of the plate. Matcha does not replace a portion of vegetables, not remotely. It is a drink, and what makes it useful here is that it fits the macros without arithmetic.

Approximate nutrition per serving

Values shift slightly with quality and dose. This table is for a serving of about 2 g of pure matcha.

Summary: composition and studies

How to drink matcha without tipping out of ketosis

Good moments

• Morning: as an alternative to coffee, with half the caffeine per cup.
• Before training: a randomised placebo-controlled trial in Nutrition Journal (2023, Shigeta et al., PMID 37403052) gave healthy untrained men 1.5 g of matcha twice a day for 8 or 12 weeks alongside resistance training and measured maximal strength, muscle mass, subjective fatigue and salivary cortisol.
• Afternoon: when you want flavour without sugar. If you are caffeine sensitive, stop after mid afternoon.
• Quiet moments: reading, studying, working, or doing nothing on purpose.

What to combine it with

The liquid base and the sweetener decide everything:

• Unsweetened plant drinks (almond, coconut, macadamia).
• A small amount of double cream, thinned with water.
• MCT oil or coconut oil if you want to raise the fat.
• Stevia or erythritol for sweetness without carbohydrate.

Do not combine it with sugar, honey, syrups or sweetened plant milks. A matcha latte with syrup is a green pudding, which is entirely fine, just not keto.

Why this particular matcha

On keto, quality counts twice. A low grade tastes bitter, demands sweetener, and that is exactly where the maths collapses. Our first-harvest organic ceremonial matcha has natural sweetness and gentle umami, drinks neat or with an unsweetened plant drink, with no clumps and no sediment.

• 100% pure matcha: no sugar, no flavourings, no fillers.
• Ceremonial grade: meant to be drunk neat, not disguised.
• Very fine milling: dissolves better.
• Organic certification: CCPAE, code ES-ECO-019-CT, plus USDA Organic.
• 100 g format: around 50 bowls at £19.00, so roughly 38p each.

Origin: shade grown in Jingshan (China), processed at Zhejiang Camel Transworld in Yuhang (Hangzhou). For baking and ice cream, use the culinary grade.

Four keto recipes with matcha

1. Creamy keto matcha latte

For anyone replacing the morning coffee.

Ingredients (1 cup):

• 1 level teaspoon of ceremonial matcha.
• 150 ml unsweetened almond or coconut drink.
• 50 ml hot water, not boiling.
• 1 tablespoon double cream or 1 teaspoon MCT oil, optional, for more fat.
• Stevia or erythritol to taste, optional.

Method:

1. Heat the water to around 70 to 80 °C.
2. Sift the matcha into a bowl so it does not clump.
3. Add the hot water and whisk briskly with a bamboo whisk or a milk frother until it foams.
4. Warm the plant drink with the cream or MCT oil, and sweeten if you want.
5. Pour the matcha into the cup, add the creamy part, stir briefly.

If you are caffeine sensitive, start with half a teaspoon.

2. Matcha fat bombs

A snack for the first keto week in particular.

Ingredients (12 to 15 small pieces):

• 80 g virgin coconut oil.
• 40 g butter, grass fed if you can.
• 1 to 2 teaspoons ceremonial matcha.
• 20 to 30 g powdered erythritol, to taste.
• A few drops of natural vanilla extract, optional.

Method:

1. Melt the coconut oil and butter gently over low heat.
2. Take off the heat and stir in the erythritol, matcha and vanilla.
3. Mix until no lumps remain.
4. Spoon into small silicone moulds.
5. Chill for at least an hour.

Keep them in the fridge. Left on the worktop, fat bombs become green puddles in about fifteen minutes.

3. Green keto smoothie with matcha and avocado

A quick, substantial breakfast.

Ingredients (1 serving):

• 1 teaspoon matcha.
• 1/2 ripe avocado.
• 150 ml unsweetened coconut or almond drink.
• 1 small handful of fresh spinach.
• 1 tablespoon chia seeds or ground flaxseed.
• Ice to taste.
• Stevia or erythritol if you need sweetness.

Method:

1. Put everything in the blender.
2. Blend until creamy.
3. Adjust the liquid for thickness.

4. Keto matcha chia pudding

Make it the night before, eat it in the morning.

Ingredients (1 to 2 servings):

• 2 tablespoons chia seeds.
• 200 ml unsweetened almond or coconut drink.
• 1 teaspoon ceremonial matcha.
• 1 tablespoon erythritol or a few drops of stevia.
• Flaked almonds or desiccated coconut to finish, optional.

Method:

1. Whisk the plant drink with the matcha and sweetener until the powder dissolves.
2. Add the chia seeds and stir thoroughly.
3. Leave for 10 minutes, then stir again.
4. Refrigerate for at least 3 to 4 hours, ideally overnight.
5. Stir and garnish before serving.

Staying in ketosis without obsessing

• Track net carbohydrate and keep a small buffer for drinks.
• Favour good fats: olive oil, avocado, nuts, coconut oil, decent butter.
• Do not forget protein. It is the base of any serious keto plan.
• Eat low-carbohydrate vegetables daily for fibre, micronutrients and volume on the plate.
• If you find it useful, check your status with urine strips or a blood meter.

How to start today

If you have never drunk matcha, or tried it once and filed it under bitter grass water, give it a second attempt with decent powder and clean preparation: 2 g sifted, 60 to 70 ml of water at 70 to 80 °C, whisked in a zigzag until foam appears. Boiling water sends the bitterness through the roof, and then the matcha gets blamed for something the kettle did.

• A creamy keto matcha latte in the morning for two weeks.
• The avocado smoothie on the days you are short of time.
• An afternoon ritual: screen off, whisk the bowl, drink it slowly.

References

1. Weiss DJ, Anderton CR., Determination of catechins in matcha green tea by micellar electrokinetic chromatography. Journal of Chromatography A, 2003. PMID 14518774. https://pubmed.ncbi.nlm.nih.gov/14518774/
2. Baba Y, Kaneko T, Takihara T., Matcha consumption maintains attentional function following a mild acute psychological stress without affecting a feeling of fatigue: A randomized placebo-controlled study in young adults. Nutrition Research, 2021. PMID 33744591. https://pubmed.ncbi.nlm.nih.gov/33744591/
3. Payne ER, Aceves-Martins M, Dubost J, Greyling A, de Roos B., Effects of Tea (Camellia sinensis) or its Bioactive Compounds l-Theanine or l-Theanine plus Caffeine on Cognition, Sleep, and Mood in Healthy Participants: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Nutrition Reviews, 2025. PMID 40314930. https://pubmed.ncbi.nlm.nih.gov/40314930/
4. Xu R, Yang K, Li S, Dai M, Chen G., Effect of green tea consumption on blood lipids: a systematic review and meta-analysis of randomized controlled trials. Nutrition Journal, 2020. PMID 32434539. https://pubmed.ncbi.nlm.nih.gov/32434539/
5. Uchida K, Meno K, Korenaga T, et al., Effect of matcha green tea on cognitive functions and sleep quality in older adults with cognitive decline: A randomized controlled study over 12 months. PLoS One, 2024. PMID 39213264. https://pubmed.ncbi.nlm.nih.gov/39213264/
6. Shigeta M, Aoyama Y, Kokubo Y, et al., Matcha green tea beverage moderates fatigue and supports resistance training-induced adaptation. Nutrition Journal, 2023. PMID 37403052. https://pubmed.ncbi.nlm.nih.gov/37403052/