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Metabolism

Stoke

Daily Formula with Chromium, Choline and B688 capsules · 22 servings

200 mcg chromium and 200 mg choline
25 mg vitamin B6 and 60 mg vitamin C
500 mg inositol with garcinia, CLA and MCT oil

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This product is not on sale yet.

One container is 22 servings: about 22 days at the label amount.

Not for anyone under 18, pregnant or nursing. Ask a doctor first if you take any prescription medicine.

The manufacturer's lab report covers heavy metals and microbes, and part of the strength. What that means

New York law prohibits the sale of this product to anyone under 18. California law does the same from January 1, 2027.

The whole label

What’s in it

Supplement Facts
Amount per serving	Amount	% Daily Value
Serving size 4 capsules
Servings per container 22
Vitamin C(as ascorbic acid)	60 mg	67%
Vitamin B-6(as pyridoxine HCl)	25 mg	1471%
Choline(as choline bitartrate)	200 mg	37%
Chromium(as chromium polynicotinate)	200 mcg	571%
Proprietary BlendSpirulina Powder, L-Phenylalanine, L-Tyrosine, L-Methionine, Bromelain, Psyllium Husk Powder, Clove Bud Powder, Allspice, Kelp 10:1 Extract, Juniper Berry 4:1 Extract, Buchu Leaf 4:1 Extract, Uva Ursi Leaf (20% extract), Cinnamon Bark 10:1 Extract (Cinnamomum cassia), Cranberry Fruit Concentrate, Grapefruit Fruit 4:1 Extract	631 mg	**
Inositol	500 mg	**
Garcinia cambogia Fruit Extract(50% hydroxycitric acid)	200 mg	**
CLA(Conjugated Linoleic Acid)	100 mg	**
Medium Chain Triglycerides Oil	70 mg	**
Bladderwrack Thallus Powder	50 mg	**
Gymnema sylvestre Leaf(25% extract)	25 mg	**
L-Carnitine(as L-Carnitine Tartrate)	25 mg	**
Turmeric Root(95% extract)	25 mg	**
Coenzyme Q10	5 mg	**
GLA(Gamma-Linolenic Acid)	5 mg	**
**Daily Value (DV) not established.

Other Ingredients:: Gelatin (bovine), rice flour, vegetable magnesium stearate, silicon dioxide and chlorophyll.

Form: Capsule
Contents: 88 capsules
Servings: 22 (4 capsules each)
Lasts: About 22 days at the label amount
Manufactured in: USA, according to the manufacturer. Where the ingredients come from is not stated.

Directions

How to take it

Take two capsules with water before breakfast and two before dinner. Four capsules a day at most.

Directions on the label

4 capsules daily, preferably with meals or as directed by a healthcare professional. For best results, take 2 capsules with 8 ounces (237ml) of water before breakfast and again before dinner. This product should be used in conjunction with a sensible diet and exercise program.

Label warnings

Do not exceed recommended dose. Avoid taking this product in conjunction with other dietary supplements containing high elemental chromium levels. This product is not intended for pregnant or nursing mothers or children under the age of 18. If you are diabetic or have a known medical condition, consult your physician before taking this or any dietary supplement. This product is manufactured and packaged in a facility that may also process milk, soy, wheat, egg, peanuts, tree nuts, fish, and crustacean shellfish.

Keep out of reach of children. Do not use if the safety seal is damaged or missing. Store in a cool, dry place.

Graded honestly

What the evidence says

Stoke is a four-capsule daily formula with vitamins B6 and C, choline, chromium, inositol and a long list of botanicals, including garcinia, uva ursi, kelp, bladderwrack and grapefruit extract. The only benefits we describe are well-established functions of vitamin B6 and vitamin C. The botanicals are present in small or unstated amounts, far below the doses that were studied, so no claim is made for them. Several of them carry cautions, which are listed below.

How it works

Vitamin B6 works as a coenzyme in more than 100 enzyme reactions, most of them in protein metabolism. It also takes part in carbohydrate and fat metabolism, in releasing stored glycogen, and in making lymphocytes, a type of white blood cell. Vitamin C is needed to make collagen, carnitine and some neurotransmitters, acts as an antioxidant and has a role in immune function. How chromium acts in the body is not settled. European regulators concluded in 2014 that there is no convincing evidence it is an essential nutrient. Garcinia's hydroxycitric acid blocks an enzyme in laboratory studies, but human trials have not shown a consistent effect.

The dose in this product

Four capsules provide vitamin C 60 mg, vitamin B6 25 mg, choline 200 mg and chromium 200 mcg. The three benefits above rest on vitamins B6 and C only.

How that compares with the studies

Vitamin B6 at 25 mg is about 15 times the adult RDA. It is under the US adult upper limit of 100 mg, but above the 12 mg limit European regulators set in 2023, and above the 10 mg level at which Australia requires a warning label. Choline 200 mg is 37% of the Daily Value.

We make no choline claim. Chromium 200 mcg is far above the adult Adequate Intake of 20 to 35 mcg, and its role as a nutrient is disputed, so no chromium claim is made. This product makes no claim about body weight, fat or appetite.

For context only: the garcinia trials used 1,000 to 2,800 mg of hydroxycitric acid a day and found a short-term average change in body weight of 0.88 kg, which was no longer significant in the two best designed trials. This label gives 200 mg of a 50% extract, or about 100 mg of hydroxycitric acid. Chromium trials used 137 to 1,000 mcg a day and found changes of about 0.5 to 1.1 kg, which reviewers called of uncertain or debatable relevance.

CLA trials used 3.2 to 6.4 g a day against 100 mg here. Carnitine trials used 1.8 to 4 g a day against 25 mg here. Gymnema is typically taken at 400 mg three times a day against 25 mg here, and turmeric at 100 mg to more than 1,000 mg a day against 25 mg here.

Inositol 500 mg, MCT oil 70 mg, CoQ10 5 mg and GLA 5 mg: no claim is made. Twelve of the fifteen ingredients in the 631 mg blend have no stated amount, including uva ursi, kelp and grapefruit extract.

Moderate evidence
Vitamin B6 and vitamin C contribute to normal energy-yielding metabolism
This is a well-established nutrient function. NIH describes vitamin B6 as a coenzyme in more than 100 enzyme reactions, and EU regulators permit this wording for vitamin B6 and vitamin C in any product that is at least a source of them. Four capsules supply 25 mg of vitamin B6 and 60 mg of vitamin C. The benefit is about getting enough. The B6 needed for it is the RDA of 1.3 to 1.7 mg, and more than that adds nothing known. [1][5]
Moderate evidence
Vitamin B6 contributes to normal protein and glycogen metabolism
This is a well-established nutrient function. NIH states that vitamin B6 is involved mostly in protein metabolism and in breaking down stored glycogen, and EU regulators permit this wording for products that are at least a source of vitamin B6. Four capsules supply 25 mg, about 15 times the adult RDA, so the amount is far more than this function needs. [1][5]
Moderate evidence
Vitamin C and vitamin B6 contribute to the normal function of the immune system
This is a well-established nutrient function. NIH describes a role for vitamin C in immune function and states that vitamin B6 promotes lymphocyte production, and EU regulators permit this wording for both. Four capsules supply 60 mg of vitamin C, below the adult RDA of 75 to 90 mg, and 25 mg of vitamin B6. It describes a normal function, not protection from illness. [2][1][5]

Strong evidence: many human trials agree, at the amount in this product. Moderate evidence: human trials mostly agree, but they are small, short or mixed. Early evidence: a few small human studies or lab work. Promising, not proven.

Safety

Who it is for, and who should ask first

Do not use if

You are pregnant or nursing, or under 18. The supplier's label says the product is not intended for these groups, and European regulators do not recommend uva ursi in pregnancy, nursing or under 18.
You have phenylketonuria (PKU). The blend contains L-phenylalanine in an unstated amount.
You have a kidney disorder. European regulators list kidney disorders as a reason not to use uva ursi.
You have ever had liver injury from a supplement. Garcinia, turmeric and gymnema products have each been linked to rare cases of liver injury, and LiverTox advises against taking garcinia again after a reaction.

Good fit if

Adults who want vitamin B6, vitamin C, choline and chromium in one product and have read the cautions below
People who take no prescription medicine, or whose doctor or pharmacist has checked this label
Not for anyone looking for a weight product. We make no such claim

Ask your doctor first if

You take insulin or any diabetes medicine. Chromium and gymnema might lower blood sugar and add to the medicine's effect
You have a thyroid condition or take thyroid medicine. Kelp and bladderwrack contain iodine in an unstated amount, and chromium can reduce levothyroxine absorption
You take any prescription medicine that carries a grapefruit warning, such as some statins, nifedipine, cyclosporine, buspirone, budesonide or amiodarone. The blend contains grapefruit extract in an unstated amount
You take an antidepressant, especially an SSRI. Garcinia was linked to serotonin toxicity in a person taking two SSRIs, and to rare reports of mania
You have liver disease or kidney disease. People with these may be more sensitive to high chromium intakes
You take seizure medicines such as phenytoin or phenobarbital, or have a seizure disorder. High-dose vitamin B6 can lower phenytoin and phenobarbital levels, and carnitine has rarely been linked to seizures in people with seizure disorders
You plan to take it for more than a week. European regulators advise that uva ursi be used for no more than one week at a time
You already take other supplements containing vitamin B6 or chromium

Interactions

Insulin, metformin and other diabetes medicines: chromium might add to their effect and raise the risk of low blood sugar. Gymnema has blood sugar lowering effects in laboratory and animal studies.
Levothyroxine: chromium taken at the same time reduced its absorption in a small study. Take them hours apart and tell your doctor.
Antithyroid medicines such as methimazole: extra iodine from kelp and bladderwrack can add to their effect.
Medicines affected by grapefruit, such as simvastatin, atorvastatin, nifedipine, cyclosporine, buspirone, budesonide, amiodarone and fexofenadine: grapefruit can change how much of the medicine reaches the blood. The amount of grapefruit extract here is not stated.
SSRI antidepressants: garcinia was associated with serotonin toxicity in a person taking two SSRIs.
Phenytoin and phenobarbital: vitamin B6 at 200 mg a day lowered their blood levels. Whether 25 mg does is not known.
Other supplements with vitamin B6, chromium, green tea extract or other botanicals: see the stacking note.

Possible side effects

Nausea, stomach upset, headache, loose or watery stools (reported with garcinia, chromium and CLA)
Nausea, vomiting and stomach ache (reported with uva ursi)
A fishy body odor (reported with carnitine, and with high choline intakes)
Tingling, burning or numbness in the hands or feet. Stop taking the product and see a doctor. This is a known effect of vitamin B6
Tiredness, nausea, dark urine or yellowing of the skin or eyes. Stop taking the product and see a doctor at once. These are signs of liver injury, which has been reported rarely with garcinia products

Upper limit

Adult tolerable upper intake levels from food and supplements combined (NIH Office of Dietary Supplements): vitamin B6 100 mg, vitamin C 2,000 mg, choline 3,500 mg and iodine 1,100 mcg. Four capsules provide 25 mg, 60 mg and 200 mg of the first three. The iodine content is not stated.

European regulators set a lower vitamin B6 limit of 12 mg a day in 2023, and this product alone is above it. Australia requires a nerve warning on any product with more than 10 mg of vitamin B6 a day and reports nerve symptoms at doses under 50 mg. No upper limit has been set for chromium.

European regulators advise using uva ursi for no more than one week at a time. Garcinia's long-term safety is unknown because all trials were short.

Combining with our other products

Vitamin B6 is the main thing to add up. Stoke has 25 mg. Men's Multi adds 7.5 mg, Ashwagandha Complex 2.5 mg, BCAA 2:1:1 2.5 mg and Immune Support 1.7 mg.

Stoke with Men's Multi is 32.5 mg a day, and with all five it is 39.2 mg. That is under the US limit of 100 mg but about three times the 12 mg limit set by European regulators, and nerve symptoms have been reported below 50 mg. If you take Stoke, you do not need more vitamin B6 from other products.

Chromium: Stoke (200 mcg) with Men's Multi (120 mcg) is 320 mcg. No upper limit is set, but the supplier's label says to avoid other supplements high in chromium. Vitamin C: with Men's Multi (150 mg) and Immune Support (180 mg) the total is 390 mg, well under the 2,000 mg limit.

CoQ10: Stoke adds only 5 mg to the 200 mg in CoQ10. Men's Multi also contains green tea extract and cassia cinnamon. Green tea extract has its own reports of liver injury, so taking it with Stoke's garcinia, turmeric and gymnema puts several botanicals with rare liver reports together.

Ask your doctor before combining them.

Lab reports

What the lab report covers

We hold the manufacturer’s lab report for a production lot of this product. It reports on the manufacturer’s own lot, not on the container you receive. This is what it covers and what it leaves out.

The vitamins, chromium, choline, inositol and garcinia are measured. The 631 mg blend and the other botanicals are not.

See every product’s lab report

Strength of the main ingredient: Partly measured
Identity test: Not reported
Heavy metals: Measured
Microbes: Tested
Lab named on the report: No
Latest report: February 2026

Answers

Questions people ask

Is Stoke a fat burner?

We make no claim about body weight, fat or appetite. The supplier sells this formula as 'Fat Burner with MCT', and we renamed it so the name makes no claim. Trials of garcinia, chromium, CLA and carnitine found small or uncertain changes in body weight, at doses far above the amounts in these capsules.

What does Stoke actually do, then?

It supplies vitamin B6 and vitamin C, which the body uses for normal energy-yielding metabolism, normal protein and glycogen metabolism and normal immune function. That is the full extent of what we claim. The other ingredients are present in small or unstated amounts and no claim is made for them.

Is 25 mg of vitamin B6 too much?

It is under the US adult upper limit of 100 mg, but above the 12 mg limit European regulators set in 2023. Australia's regulator has received reports of peripheral neuropathy (tingling, burning or numbness in the hands and feet) at doses under 50 mg, often in people taking more than one product with B6. If you notice those symptoms, stop and see a doctor. Do not add other B6 supplements on top of Stoke.

I heard garcinia can harm the liver. Is that true?

Rarely, yes. LiverTox lists garcinia as a likely rare cause of liver injury, with at least a dozen reports, mostly with multi-ingredient products. Symptoms usually began 1 to 4 weeks after starting, and some cases led to liver failure, transplant or death. Stop at once and see a doctor if you notice tiredness, nausea, dark urine or yellowing of the skin or eyes. Do not take it if you have liver disease without your doctor's advice.

Can I take it every day?

The label directs four capsules a day with no time limit. The blend contains uva ursi leaf, which European regulators advise using for no more than one week at a time because of its hydroquinone content. The amount here is not stated. Talk to your doctor before taking Stoke for longer than a week, and do not take it if you have a kidney disorder.

Does it contain iodine?

Yes, but the amount is not stated. Kelp and bladderwrack are seaweeds, and NIH reports that seaweed iodine varies from 16 to 2,984 mcg per gram. Too much iodine can upset thyroid function, especially in people with autoimmune thyroid disease. If you have a thyroid condition or take thyroid medicine, ask your doctor first.

Can I take it with Men's Multi or Immune Support?

Add up the vitamin B6 first. Stoke has 25 mg, Men's Multi 7.5 mg and Immune Support 1.7 mg, so all three come to 34.2 mg a day. That is under the US limit of 100 mg but well above the European limit of 12 mg. Men's Multi also adds 120 mcg of chromium and green tea extract. Ask your doctor before combining them.

Is it vegetarian?

No. The capsule is made of bovine gelatin. The supplier also says it is made in a facility that may process milk, soy, wheat, egg, peanuts, tree nuts, fish and shellfish.

Read the studies

Sources

1.National Institutes of Health, Office of Dietary Supplements. Vitamin B6: Fact Sheet for Health Professionals. Updated June 16, 2023. Open source (opens in a new tab)Vitamin B6 works in more than 100 enzyme reactions, mostly in protein metabolism, and has roles in glycogen breakdown and immune function. The US adult upper limit is 100 mg, and European regulators set 12 mg in 2023. Long-term intakes of 1 to 6 g a day cause serious nerve damage, and 200 mg a day can lower phenytoin and phenobarbital levels.
2.National Institutes of Health, Office of Dietary Supplements. Vitamin C: Fact Sheet for Health Professionals. Updated July 31, 2025. Open source (opens in a new tab)Vitamin C is needed to make collagen, carnitine and some neurotransmitters, is an antioxidant and plays a role in immune function. The adult upper limit is 2,000 mg, and high doses can cause stomach upset.
3.National Institutes of Health, Office of Dietary Supplements. Chromium: Fact Sheet for Health Professionals. Updated June 2, 2022. Open source (opens in a new tab)European regulators concluded in 2014 that there is no convincing evidence that chromium is an essential nutrient. No upper limit is set. Chromium might add to the effect of insulin and other medicines that lower blood sugar, and it reduced levothyroxine absorption in a small study. People with liver or kidney problems may be more sensitive to high intakes.
4.National Institutes of Health, Office of Dietary Supplements. Dietary Supplements for Weight Loss: Fact Sheet for Health Professionals. Updated May 18, 2022. Open source (opens in a new tab)Trials of garcinia (1,000 to 2,800 mg hydroxycitric acid a day), chromium (137 to 1,000 mcg), CLA (3.2 to 6.4 g) and carnitine (1.8 to 4 g) found small or uncertain effects. Garcinia products have been linked to 10 reports of liver toxicity, three of mania and one of serotonin toxicity with SSRIs, and garcinia's long-term safety is unknown.
5.European Commission. Commission Regulation (EU) No 432/2012 of 16 May 2012 establishing a list of permitted health claims made on foods. Official Journal of the European Union. 2012;L 136:1. Open source (opens in a new tab)Based on EFSA opinions, the EU permits 'contributes to normal energy-yielding metabolism' and 'contributes to the normal function of the immune system' for vitamins B6 and C, and 'contributes to normal protein and glycogen metabolism' for vitamin B6, in products that are at least a source of the nutrient. It also lists chromium and choline claims, which we do not use.
6.LiverTox: Clinical and Research Information on Drug-Induced Liver Injury. Garcinia Cambogia. National Institute of Diabetes and Digestive and Kidney Diseases. Last update February 13, 2019. Open source (opens in a new tab)At least a dozen reports of liver injury in people taking products containing garcinia, mostly multi-ingredient products. Onset was usually 1 to 4 weeks after starting, sometimes 3 to 12 months. Some cases led to acute liver failure, and some were fatal or needed a transplant. Likelihood score B: a likely rare cause of liver injury.
7.European Medicines Agency, Committee on Herbal Medicinal Products. European Union herbal monograph on Arctostaphylos uva-ursi (L.) Spreng., folium. EMA/HMPC/750269/2016. 30 January 2018. Open source (opens in a new tab)For bearberry (uva ursi) leaf medicines: not to be used for more than one week, not for people with kidney problems, not recommended under 18 or in pregnancy and nursing, and nausea, vomiting and stomach ache reported. Daily doses correspond to 200 to 840 mg of hydroquinone derivatives.
8.Therapeutic Goods Administration (Australia). Health supplements containing vitamin B6 can cause peripheral neuropathy. Safety alert, published 10 November 2022. Open source (opens in a new tab)After more than 30 reports, Australia's regulator found that nerve effects (tingling, burning or numbness in the hands and feet) can occur at vitamin B6 doses under 50 mg, often with more than one product. Since March 2023 products with more than 10 mg a day must carry a warning.

Reviewed 2026-10-13. This page is information, not medical advice.

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*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.