🟢 95/100

This product looks safe

  • Vitamin B3: 250mg is 7.1× the Tolerable Upper Intake Level (35mg)
  • Caffeine Anhydrous: 1840mg is 4.6× the Tolerable Upper Intake Level (400mg)
  • 31% of ingredients have research evidence
D Label Compliance Grade

Product Label

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Safety Alerts

⚠️ Vitamin B3: 250mg is 7.1× the Tolerable Upper Intake Level (35mg)
⚠️ Caffeine Anhydrous: 1840mg is 4.6× the Tolerable Upper Intake Level (400mg)

Label Data

19 Gram(s) Serving Size
20 Servings
Other Combinations Product Type
31% Evidence Coverage

Supplement Facts — Evidence Check

250 mg
⚠️ Exceeds Tolerable Upper Intake Level by 7.1× (UL: 35 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 250mg UL 35mg
📊 Market median: 2000.0mg (275 products)
Median 2000.0mg This product: 5985mg
4009 mg
📊 Market median: 500.0mg (143 products)
This product: 4009mg
5500 mg
📊 Market median: 1500.0mg (104 products) 📚 21 studies (Tier A: 0, B: 2)
This product: 5500mg
2630 mg
📊 Market median: 500.0mg (223 products) 📚 22 studies (Tier A: 0, B: 1)
This product: 2630mg
📊 Market median: 260.0mg (249 products) 📚 156 studies (Tier A: 4, B: 61)
This product: 1320mg
Sweet Orange
980 mg
⚠️ Exceeds Tolerable Upper Intake Level by 4.6× (UL: 400 mg) 📚 43 studies (Tier A: 1, B: 19)
This product: 1840mg UL 400mg
📊 Market median: 495.0mg (70 products)
Median 495.0mg This product: 210mg
Black Pepper (Piper nigrum) (25-35:1) extract
10 mg
Energy
84 kJ (1% DV)
Energy
440 kJ
Fat
Carbohydrates
1.9 Gram(s)
Protein
24 Gram(s)
Salt

Other Ingredients

L-Citrulline DL-Malate Beta-Alanine A-AKG Complex Silicon Dioxide Calcium Salts Flavouring L-Tyrosine Maltodextrin Caffeine Anhydrous Green Tea (Camellia sinensis) leaf extract Sweeteners Sweet Orange Nicotinamide Guarana (Paullinia cupana) seed extract Colours Black Pepper (Piper nigrum) fruit extract Ingredients

Label Claims — Verification

Nutrient
All Other
All Other (97% of products) Structure/Function (86% of products) Nutrient (36% of products)

Target Groups

Adult (18 - 50 Years) Women (not pregnant or lactating)

Product Information

📋 Directions for Use

Recommended use: Mix 2 heaping scoops of powder (~19 g) with 250-300 mL of cold water. Drink 1 serving 30 minutes before your workout.

⚠️ Warnings & Precautions

High caffeine content (372 mg/serving).

Not recommended for children and pregnant or nursing women.

Not recommended for children and pregnant or nursing women.

May have an adverse effect on activity and attention in children.

Warnings: Do not exceed the recommended daily dose. For healthy adults only. Consult your physician before use.

Not recommended for use by those taking medication.

Do not use if you are allergic to any of the supplement compounds.

Food supplements should not be used as a substitute for a varied and well-balanced diet.

Beta-Alanine may cause a harmless, temporary tingling sensation on the skin for some individuals.

Keep out of reach of young children.

Do not consume product with alcohol.

Allergen information: Made in a facility that uses milk, soy, egg and nuts.

🧪 Formulation Notes

Blood & Guts. Food supplement. With sweeteners.

Blood & Guts is recommended for physically active people, especially those who engage in high intensity and high-volume strength training sessions.

The mind & body pre-workout

6000 mg Citrulline Malate 4000 mg Arginine AKG 5500 mg Beta Alanine Per serving

Additional Information

1 Pete ShadowLine

Dorian Yates 6x Mr. Olympia

Best before end, batch number (see on the bottom of the container),

Store in dry and cool place. Protect from direct sunlight.

Facebook/DorianYatesNutrition Youtube/DorianYatesNutrition Instagram/dynutrition Twitter/DYNutrition

Product Details

UPC / SKU 5 949106 122825
DSLD Entry Date 2021-01-22
Product Type Other Combinations
Form Powder
Brand DY Nutrition
DSLD ID 241746
Data Updated 2026-04-11

Research Evidence

241 Research Sources
55 Avg Quality Score
113 Meta Analysis
75 Systematic Review
32 Rct
11 Clinical Trial
3 Other
3 Regulatory Source
1 Cochrane Review
1 Narrative Review
1 Openfda Safety
A Niacin for primary and secondary prevention of cardiovascular events
Meta Analysis The Cochrane database of systematic reviews 2017
A Use of high potency statins and rates of admission for acute kidney injury: multicenter, retrospective observational analysis of administrative databases
Meta Analysis BMJ (Clinical research ed.) 2013
A Effect on cardiovascular risk of high density lipoprotein targeted drug treatments niacin, fibrates, and CETP inhibitors: meta-analysis of randomised controlled trials including 117,411 patients
Meta Analysis BMJ (Clinical research ed.) 2014
A A terminal metabolite of niacin promotes vascular inflammation and contributes to cardiovascular disease risk
Meta Analysis Nature medicine 2024
A Meta-analysis and imputation refines the association of 15q25 with smoking quantity
Meta Analysis Nature genetics 2010
A Genome-wide meta-analyses identify multiple loci associated with smoking behavior
Meta Analysis Nature genetics 2010
A Antidepressants for smoking cessation
Meta Analysis The Cochrane database of systematic reviews 2014
A Topical azelaic acid, salicylic acid, nicotinamide, sulphur, zinc and fruit acid (alpha-hydroxy acid) for acne
Meta Analysis The Cochrane database of systematic reviews 2020
B Assessment of the Role of Niacin in Managing Cardiovascular Disease Outcomes: A Systematic Review and Meta-analysis
Meta Analysis JAMA network open 2019
B Association Between Lowering LDL-C and Cardiovascular Risk Reduction Among Different Therapeutic Interventions: A Systematic Review and Meta-analysis
Meta Analysis JAMA 2016
View all evidence for Niacin →

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