Dark Katana Carbo 525 grams YAMAMOTO
What is Dark Katana Intra-Workout, and what is it used for?
Dark Katana is an intra-workout supplement designed and developed for athleteswho demand the most from every training session, to support intense, high-intensity workouts. It is a complete pre-workout supplement, requiring no additional ingredients, in the form of an orange-flavored powder that, when dissolved in water, provides top-quality slow-release carbohydrates, essential amino acids, the next-generation Peptistrong™ peptide, and a phyto-blend rich in natural extracts that work synergistically to support mental focus, responsiveness, and pump (green coffee, green tea titrated to 40% EGCG, turmeric, sour cherry, blueberry, kale). The presence of high-quality carbohydrates, such as highly branched cyclic cyclodextrins and trehalose, makes it ideal for supporting long-duration (>60 minutes) and high-intensity performance. The Dark Katana formula is comprehensive and supports training in every way: it boosts energy, reduces fatigue, aids recovery, promotes hydration, maintains proper plasma volume, and supports muscle pump.
But what exactly is in Dark Katana Intra-Workout that makes it so effective?
Dark Katana is an intra-workout supplement featuring a comprehensive and complex blend of ingredients and micronutrients, designed to work synergistically to maximize workout performance, especially during high-intensity, long-duration workouts (>60 minutes):
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Highly branched cyclodextrins (HBCDs): cutting-edge carbohydrates designed to promote a steady release of energy over time to support athletic performance. HBCDs provide rapid yet sustained energy, making them ideal for sports nutrition. Consuming these carbohydrates before exercise contributes to glycogen stores in the muscles and helps maintain blood sugar levels. During performance, they provide energy, delay fatigue, and improve endurance during exercise. After exercise, they help replenish glycogen stores. Carbohydrate metabolism is involved in hormonal processes that promote the uptake of nutrients, including amino acids, into muscle cells, accelerating muscle repair and growth. The highly branched structure of this high-molecular-weight carbohydrate improves the bioavailability, stability, and solubility of the active ingredients (1; 2; 3);
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Trehalose: a natural carbohydrate and disaccharide composed of two glucose molecules. It is found in many living organisms and is used as an energy reserve and to protect proteins from damage. Trehalose has a lower sweetening power than table sugar (sucrose) and offers other advantages, such as greater thermal and acid stability. It is known to help induce a gradual rise in blood glucose levels, helping to avoid the energy crashes typical of a glycemic spike, which is why it is useful in endurance sports to support prolonged activities as an energy source (4; 5);
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L-leucine, L-citrulline, L-valine, L-isoleucine, L-threonine, L-lysine, L-methionine, L-phenylalanine, L-histidine, and L-tryptophan: ablend of essential amino acidstohelp meet protein needs, promoting energy support during performance while helping to reduce fatigue and combat tiredness. (6);
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PeptiStrong Hydrolyzed Fava Bean Protein: a bioactive peptide derived from hydrolyzed fava bean protein that acts through the mTOR and Phospho-S6 signaling pathways to increase muscle synthesis, reduce muscle catabolism via the Atregin and MURF-1 pathways, increase mitochondrial mass, and optimize strength recovery. Hydrolyzed fava bean proteins are a source of plant-based protein and are obtained through hydrolysis, a technique that breaks down complex proteins into smaller peptides and amino acids, facilitating their absorption by the body. This production process makes the hydrolyzed proteins easily digestible. These specific cell signaling peptides found in PeptiStrong work intelligently by utilizing the body’s natural signaling pathways to optimize cellular growth and recovery processes. Research on PeptiStrong suggests that these peptides contribute to increased muscle protein synthesis and energy, as well as reduced muscle breakdown and exercise-induced inflammation (7;8;9);
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Glycerol: a functional molecule that promotes cellular hydration and helps prevent the loss of water and fluids that occurs during intense workouts. For this reason, glycerol is used, particularly in endurance sports, as a useful aid for rehydration and overall performance enhancement (10);
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Sodium and Potassium: minerals in citrate form that are ideal for supporting hydration during intense and prolonged workouts and in cases of excessive sweating to restore proper electrolyte balance. Potassium helps regulate fluid flow within cells, while sodium helps maintain the osmotic balance between cells and extracellular fluid (11);
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TruBeet: a patented, standardized formula with a high content of natural nitrates extracted from beets (Beta vulgaris). The formula is standardized to contain over 6% inorganic nitrate (compared to traditional beet extracts, which typically contain 1–3%), allowing for significantly lower dosages. Furthermore, it also harnesses the natural power of polyphenols, which work in harmony with nitrates to support performance during physical exercise. Taking TruBeet facilitates the production of nitric oxide in tissues experiencing hypoxia, such as muscles during physical exercise. It has been documented that improved NO bioavailability influences muscle function and physical performance because it reduces the oxygen cost of ATP synthesis and increases the recovery of muscle phosphocreatine (PCr) in hypoxic conditions. TruBeet® has been clinically shown to improve end-of-race performance in endurance events following prolonged moderate-intensity exercise. The same study also found that TruBeet® can accelerate the kinetics of muscle deoxyhemoglobin, improving oxygen extraction from the muscles.(12);
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Magnesium: Magnesium is an essential component of cells. It helps reduce tiredness and fatigue and maintain healthy bones and teeth. It contributes to the proper functioning of the nervous system, mental function, and the muscular system (13);
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Plant extract blend:acombination of seven plant-based ingredients (green coffee, green tea, turmeric, cherries, blueberries, broccoli, and kale) that stimulate nitric oxide production and, as studies have shown, are capable of activating the body’s nitric oxide production system. This blend is entirely plant-based and nitrate-free, and is designed to help you experience the benefits of nitric oxide so you can better focus on your performance. In several acute double-blind studies, this blend has been shown to increase circulating nitric oxide levels in the blood for long-term support of the nitric oxide cycle (14);
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Vitamin B6:ThisB-complex vitamin plays a role in protein and glycogen metabolism, helps regulate hormonal activity, and supports red blood cell production. It also plays an essential role in supporting the proper functioning of the immune system, boosting cognitive function, and combating aging (15);
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Vitamin B1: Alsoknownas thiamine, vitamin B1 is primarily involved in carbohydrate metabolism: it plays a significant role in the process of converting glucose into energy (16).
Dark Katana is the perfect intra-workout supplement to support your entire workout: it provides easily absorbed energy and carbohydrates, combats fatigue, helps maintain muscle pump, counteracts catabolism, hydrates cells, and optimizes concentration and mental performance—all without affecting blood sugar levels or gastric emptying. It is an indispensable ally for getting the most out of your entire workout, especially during high-intensity sessions.
| Nutrition Facts (Orange) |
Per 35 g | VNR* |
| Highly branched cyclodextrins |
10 g |
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| Trehalose** | 8 g |
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| L-leucine | 2,5 g | - |
| Hydrolyzed fava bean protein (PeptiStrong™) | 2,4 g |
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| L-citrulline | 2 g | - |
| L-valine | 1,25 g | - |
| L-isoleucine | 1,25 g | - |
| Glycerol (GlycerSize™) | 1 g | - |
| Potassium | 300 mg | 15% |
| Sodium | 160 mg | |
| L-threonine | 500 mg | |
|
Beet extract (TruBeet™) of which nitrates |
500 mg 30 mg |
|
| L-lysine | 300 mg | |
| L-phenylalanine | 250 mg | |
|
L-histidine |
250 mg |
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| L-methionine | 250 mg | - |
| Magnesium | 50 mg | 13% |
|
Blend of plant extracts including green tea extract of which EGCG |
80 mg 6.92 mg 2.76 mg |
- - - |
| L-tryptophan | 80 mg | - |
| Niacin | 12 mg | 75% |
| Vitamin B6 | 2.5 mg | 179% |
| Vitamin B1 | 2.1 mg | 191% |
| *NRV: Nutrient Reference Values | ||
highly branched cyclodextrins, trehalose, L-leucine, PeptiStrong™ hydrolyzed fava bean protein, L-citrulline, flavorings, L-valine, L-isoleucine, GlycerSize™ (65% glycerol powder, silicon dioxide), acidity regulator: citric acid; potassium citrate, anti-caking agent: silicon dioxide; sodium citrate, L-threonine, TruBeet™ beetroot (Beta vulgaris L.) root extract titrated to 6% nitrates, L-lysine hydrochloride, L-phenylalanine, L-histidine, L-methionine, magnesium salts of citric acid, sweetener: sucralose; blend of plant extracts [green coffee extract (Coffea arabica L.) seeds, green tea extract (Camellia sinensis (L.) Kuntze) leaf tit. 40% EGCG, turmeric extract (Curcuma longa L.) rhizome, sour cherry concentrate (Prunus cerasus L.) fruit, blueberry concentrate (Vaccinium corymbosum L.) fruit, broccoli concentrate (Brassica oleracea L.) aerial parts with flowers, kale concentrate (Brassica oleracea L. Convar. Acephala (DC.) Alef. Var. Viridis L.) leaf], L-tryptophan, niacin (nicotinamide), vitamin B6 (pyridoxine hydrochloride), vitamin B1 (thiamine hydrochloride).
Trehalose is a source of glucose.
Do not exceed the recommended daily dose. Dietary supplements are not intended as a substitute for a varied and balanced diet and a healthy lifestyle. Keep out of reach of children under three years of age. Do not use during pregnancy or in children, or for prolonged periods, without consulting a doctor. Do not consume a daily amount equal to or greater than 800 mg of epigallocatechin-3-gallate. Do not consume if other products containing green tea are consumed on the same day. Do not consume if pregnant or breastfeeding, or if under 18 years of age. Do not consume on an empty stomach. Use of this product is not recommended in cases of impaired liver or biliary function, or gallstones. If you are taking medication, consult your doctor. Do not use if you have thyroid dysfunction.
Add 2 scoops (35 g) to 350 ml of water or another beverage of your choice and take once a day, within 4 hours after physical activity and no later than 6 hours after the activity. The product can also be taken before or during physical activity
How should Dark Katana be used during a workout?
Add 2 scoops (35 g) to 350 ml of water or another beverage of your choice and take once a day, within 4 hours after physical activity and no later than 6 hours after the activity. The product may also be taken before or during physical activity.
Our recommendation for Dark Katana intra-workout
For workouts lasting more than 60–90 minutes, Dark Katana is perfect for sustaining performance throughout: it helps maintain electrolyte balance by counteracting fatigue, contributes to the recovery of normal muscle function after intense and/or prolonged physical exercise thanks to its carbohydrates, and replenishes muscle glycogen stores. It is a complete and functional intra-workout supplement designed to support intense, long, and prolonged workouts.
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