Addict B-Complex Vitamins

How B-Complex Vitamins by Addict Sport Nutrition supports your objectives

⚡ Normal energy metabolism — the foundation of every training session Five of the eight B vitamins in this complex (B1, B2, B3, B5 and B6) contribute to normal energy-yielding metabolism. B vitamins act as essential coenzymes in the metabolic pathways that convert carbohydrates, fats and proteins into ATP — the energy currency of every muscle contraction and cognitive process. Without adequate B vitamin availability, energy production efficiency declines, manifesting as fatigue, reduced training output and slower recovery.

🧠 Normal nervous system and psychological function Vitamins B1, B2, B3, B6 and B12 all contribute to normal functioning of the nervous system. B6 and B12 are directly involved in neurotransmitter synthesis, including serotonin, dopamine and GABA. Folic acid and B12 support normal psychological function and play a role in mood regulation. For athletes operating under high physical and cognitive demands, maintaining optimal B vitamin status supports both mental sharpness during training and general psychological wellbeing.

🩸 Normal red blood cell formation and iron metabolism Vitamins B6, B9 (folic acid) and B12 contribute to the formation of normal red blood cells. Riboflavin (B2) contributes to normal iron metabolism. Together, these functions support oxygen-carrying capacity — a direct performance factor for endurance athletes. B vitamin deficiencies, particularly B12 and folate, are a common cause of anaemia in active individuals, particularly those following plant-based or restrictive diets.

💆 Fatigue reduction across multiple pathways Vitamins B2, B3, B5, B6, B9 and B12 all carry the EU-authorised health claim of contributing to the reduction of tiredness and fatigue. This reflects the broad involvement of B vitamins in the metabolic and neurological processes that determine subjective energy levels and perceived fatigue. For athletes training at high frequency, consistent B vitamin intake is one of the most evidence-grounded strategies for managing cumulative fatigue.

💇 Biotin for normal hair, skin and mucous membrane maintenance Biotin (B7) contributes to the maintenance of normal hair and skin. For athletes who are concerned about the cosmetic side effects of intense training (hair loss associated with caloric restriction, skin quality changes during cutting phases), adequate biotin intake provides a foundational level of protection for these tissues.

🎯 Goal guide

🏋️ Mass gain: 1 capsule/day. Supports energy metabolism and protein utilisation under high training load.

🔥 Weight loss / cutting: 1 capsule/day. Compensates for B vitamin gaps common during caloric restriction.

⚖️ Body recomposition: 1 capsule/day. Broad metabolic and nervous system support during high-frequency training.

Serving suggestion

Take 1 capsule per day with a large glass of water. Consume with a meal for best absorption and tolerability. Do not exceed the recommended daily dose of 1 capsule. Food supplements should be used within the context of a healthy lifestyle and must not be used as a substitute for a varied and balanced diet.

Best times to enjoy it

🍳 With breakfast The most practical and consistent daily habit. Taking the B-Complex with the morning meal pairs it with food (which improves tolerability and absorption) and makes it easy to build into an existing routine.

🌅 Morning or midday — avoid late evening B vitamins, particularly B3 and B6, can have mildly energising effects in some individuals. Taking them in the morning or at lunch is generally preferable to late evening to avoid any interference with sleep onset.

📅 Every day, including rest days B vitamins are water-soluble and are excreted in urine when present in excess. There is no accumulation effect, which means daily consistent intake — including on non-training days — is necessary to maintain adequate plasma levels at all times.

🌱 Year-round, with particular attention during restrictive dietary phases B vitamin status is most at risk during caloric restriction, low-carbohydrate diets, or plant-based diets (particularly B12). Consistent daily B-Complex supplementation during these periods provides reliable coverage regardless of dietary variability.

Daily protein target reminder

B-Complex Vitamins is a micronutrient supplement, not a protein source. For training adaptations to fully materialise, adequate daily protein intake remains essential. Current sports nutrition science recommends 1.6 to 2.2g of protein per kg of body weight per day for active individuals. For vegan athletes, targeting the upper end (1.8 to 2.2g/kg) is advised.

Goal-specific guidance

For weight loss and cutting: Caloric restriction reduces total food intake and, with it, total micronutrient intake. B vitamins are among the most commonly depleted micronutrients during a cutting phase, particularly B1 (lost with carbohydrate restriction), B3 and B12. A daily B-Complex capsule ensures complete coverage of all eight B vitamins regardless of how restricted the diet becomes, supporting energy metabolism and fatigue management precisely when they are most challenged.

For mass gain: High training volumes and elevated protein metabolism during a bulk phase increase the demand for B6 (protein metabolism), B12 (red blood cell production) and B3 (energy metabolism). A daily B-Complex capsule covers all these increased needs in a single, convenient dose without the guesswork of trying to track individual B vitamin intake from food alone.

🏅 Sport Nutrition "Did you know?"

Vitamin B12 is the only B vitamin that cannot be obtained from plant foods in meaningful quantities. It is produced exclusively by bacteria and found naturally in animal products (meat, fish, dairy, eggs). Strict vegans and vegetarians who do not supplement B12 will develop a deficiency over time — typically within 2 to 5 years of eliminating all animal products. The consequences include megaloblastic anaemia, neurological damage and cognitive decline, all of which are entirely preventable with daily B12 supplementation. The 2.5µg of B12 in each B-Complex capsule represents 100% of the EU Nutrient Reference Value, making this product a practical daily insurance policy for plant-based athletes.

Full ingredient list

Maltodextrin, gelatin (capsule shell), niacin (vitamin B3), pantothenic acid (vitamin B5), riboflavin (vitamin B2), pyridoxine hydrochloride (vitamin B6), thiamine (vitamin B1), folic acid (vitamin B9), biotin (vitamin B7), cyanocobalamin (vitamin B12), colourant: iron oxide.

Key ingredient breakdown

Allergens and certifications

Allergens: No major allergens declared. Always refer to the product label for the most current allergen information.

Product characteristics:

• Complete 8-vitamin B complex at NRV doses
• No artificial flavourings or sweeteners
• Not suitable for vegans or strict vegetarians (gelatin capsule)
• 90-day supply at 1 capsule per day

Active ingredients per capsule (daily serving)

*NRV: EU Nutrient Reference Value

Bottle duration guide

Q1 — Why take a B-Complex rather than individual B vitamin supplements? B vitamins work synergistically — they share metabolic pathways and cofactor roles, and deficiency in one often impairs the function of others. Taking a complete B-Complex ensures that no individual vitamin becomes the limiting factor in the group's combined metabolic function. It is also significantly more convenient and more economical than maintaining eight separate supplements. For athletes with no specific single-vitamin deficiency, a well-formulated B-Complex covering all eight vitamins at NRV doses is the most practical evidence-based approach.

Q2 — Are the doses in B-Complex Vitamins high enough to be effective? Yes. Each vitamin is dosed at exactly 100% of the EU Nutrient Reference Value — the dose established to be sufficient for the general adult population. For most active individuals eating a reasonably balanced diet, NRV doses provide complete coverage of daily requirements. Megadoses (far exceeding the NRV) are not necessary for most athletes and can cause adverse effects with certain B vitamins (notably B3 and B6 at very high chronic doses). The NRV-based formula of B-Complex Vitamins is a safe, effective and evidence-grounded approach.

Q3 — Is B-Complex Vitamins suitable for vegans? No. The capsule shell is made from gelatin, which is an animal-derived ingredient. The active vitamins themselves are synthetically produced and vegan-compatible, but the gelatin shell makes the overall product unsuitable for vegans and strict vegetarians. Vegan athletes who need B vitamin supplementation — particularly B12 — should seek a product using HPMC (hydroxypropylmethylcellulose) capsules or a sublingual B12 format.

Q4 — Can I take B-Complex Vitamins alongside other supplements? Yes. B-Complex Vitamins is safe to combine with the vast majority of sports nutrition supplements including protein powders, creatine, pre-workouts, vitamin D, ZMA, iron supplements and joint support formulas. B vitamins enhance the function of many other supplements — vitamin B6 in particular improves zinc and magnesium absorption, making it a useful companion to mineral supplements. There are no known negative interactions with standard sports nutrition products.

Q5 — Why do my urine turn bright yellow after taking a B-Complex? The bright yellow colour of urine after taking B vitamins is caused by riboflavin (vitamin B2), which is naturally fluorescent and water-soluble. When daily intake exceeds what the body can immediately use, the excess riboflavin is excreted in urine — which gives it the characteristic bright yellow colour. This is completely normal and harmless, and is simply the body's efficient elimination of water-soluble vitamins it does not need to store. It does not indicate that the supplement is ineffective or that the dose is too high.