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Several small, smooth white capsules are arranged in a neat cluster on a plain surface.
●Low GI
💪High Protein

Theanine supplement Calories

Low-calorie amino acid supplement

CALORIES · 100 G

400kcal

GI

0low

POTASSIUM · 100 G

0mg

FIBER · 100 G

0g

Quick answer

1 piece (small) of Theanine supplement (0 g) has 1 calories. That works out to 400 calories per 100 g. It contains 0 g of carbs, 0.2 g of protein, 0 g of fat and 0 g of fiber. Its glycemic index is 0 (low), so it raises blood sugar slowly.

Theanine supplement Nutrition Facts

Selected: 1 piece (small) · 0.2 g

1

KCAL / 0.2G

Carbs

0g

· 0% DV

Protein

0.2g

· 0% DV

Fat

0g

· 0% DV

Fiber

0g

· 0% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 0% · Protein 100% · Fat 0%

Theanine supplement nutrition facts table · 1 piece (small) (0.2 g)

NutrientAmount% DV
Calories1 kcal
Total fat0 g0%
Saturated fat0 g0%
Trans fat0 g
Sodium0 mg0%
Total carbohydrate0 g0%
Fiber0 g0%
Protein0.2 g0%

Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.

Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.

Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.

Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.

Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.

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How Many Calories in 1 Small Theanine supplement?

ServingAmountCalories
1 piece (small)0.2 g1 kcal
1 piece (extra small)0.1 g0 kcal
1 piece (medium)0.3 g1 kcal
2 piece (double)0.5 g2 kcal
1 teaspoon (mini)2 g8 kcal
1 tablespoon (small)6 g24 kcal
1 pack (mini)10 g40 kcal
100 g100 g400 kcal

Calculated from 400 calories per 100 g.

Frequently Asked Questions About Theanine supplement

What does a theanine supplement do?

A theanine supplement provides concentrated L-theanine, an amino acid found naturally in tea, in an ultra-processed product. It is studied for possible effects on relaxation and attention, but it is not established as a treatment for a health condition.

Does a theanine supplement help with anxiety?

A theanine supplement has not been proven to treat anxiety. Research into relaxation and stress-related effects is limited, so it should not replace evidence-based care for persistent or severe anxiety.

Can a theanine supplement help you sleep?

A theanine supplement is not a proven treatment for insomnia. Some studies examine whether it may support relaxation or sleep, but the evidence does not establish that it reliably improves sleep for everyone.

Can you take a theanine supplement with caffeine?

Yes, a theanine supplement can be taken alongside caffeine, and the combination has been studied. Theanine does not cancel out caffeine, and it cannot guarantee that coffee or another caffeinated drink will not disrupt your sleep.

How long does a theanine supplement take to work?

There is no reliably established time at which a theanine supplement should start working. Study results and products vary, so do not assume that a lack of an immediate effect means you should take more.

Is L-theanine the same as theanine in a supplement?

Usually, yes: supplements commonly provide L-theanine, the form of theanine found in tea. Check the product’s ingredient list, since a supplement may also contain other active ingredients.

What are the side effects of a theanine supplement?

A theanine supplement may cause headache, dizziness, or stomach discomfort in some people. Stop taking it if you feel unwell, and consider that other ingredients in a combination product could also be responsible.

Can you take a theanine supplement every day?

Some people use a theanine supplement daily, but long-term effects are less well studied than short-term use. Daily use is not established as necessary, so follow the product directions rather than increasing or extending use on your own.

Is a theanine supplement better than drinking green tea?

A theanine supplement provides concentrated theanine, while green tea also provides caffeine and other tea compounds. Neither is universally better; choose based on whether you want tea as a drink or a concentrated supplement.

Is a theanine supplement safe during pregnancy or with medication?

Ask a doctor or pharmacist before using a theanine supplement during pregnancy or breastfeeding, or if you take medication. Safety information for these situations is limited, and a professional can check your individual circumstances.

Theanine supplement Vitamins & Minerals

Vitamins

Vitamin A

0µg · 0% DV

B1

0mg · 0% DV

B2

0mg · 0% DV

B3

0mg · 0% DV

Minerals

Calcium

0mg · 0% DV

Iron

0mg · 0% DV

Magnesium

0mg · 0% DV

Zinc

0mg · 0% DV

Sodium

0mg · 0% DV

Potassium ⭐

0mg · 0% DV

Theanine supplement Glycemic Index

GLYCEMIC INDEX

0
Low
0 Low5570100

GLYCEMIC LOAD

0
Low

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Theanine supplement

To burn the 1 calories in 1 piece (small) (0.2 g):

🚶

1min

Walking (5 km/h)

🏃

1min

Running (8 km/h)

🚴

1min

Cycling

🏊

1min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

What is Theanine supplement?

A theanine supplement provides the amino acid theanine, which occurs naturally in tea leaves, in a concentrated form. It is commonly sold as a capsule, tablet or powder, rather than as a tea or other ready-to-drink product. Unlike brewed tea, it is not a familiar part of everyday food traditions in most English-speaking households; people generally take it with water, following the directions on the pack. Capsules have little noticeable taste, while powder can be stirred into a drink. Nutritionally, it is an amino-acid-based product with no carbohydrate or fat listed. Check the serving directions, and choose water if you want to avoid changing the flavour of another drink.

How Nutritious Is Theanine supplement?

Satiety score

Low

30/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Is Theanine supplement Processed?

NOVA 4

Ultra-Processed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Theanine supplement Contain Allergens?

No known major allergens

Gluten free
Dairy free
Eggs free
Peanuts free
Tree nuts free
Fish free
Soy free
Sesame free

Which Diets Is Theanine supplement Good For?

Vegan

✓ Suitable

Vegetarian

✓ Suitable

Gluten-Free

✓ Suitable

Dairy-Free

— Not suitable

Mediterranean

✓ Suitable

Paleo

✓ Suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

✓ Suitable

Low FODMAP

— Not suitable

Theanine supplement Fat Profile

SATURATED

0g

MONOUNSATURATED

0g

POLYUNSATURATED

0g

Compare Theanine supplement

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🧴

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210 kcal

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195 kcal

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Have another question about Theanine supplement?

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Nutrition data compiled from USDA FoodData Central and scientific sources.