

C4 Ultimate Shred
Nutrabolt
Overview
C4 Ultimate Shred aims to provide a comprehensive formula for energy, focus, and metabolic support. While it includes several vitamins at effective doses and a few potential thermogenic ingredients, the use of a proprietary blend makes it difficult to assess the efficacy and safety of the full ingredient combination. The stimulant content may provide a noticeable energy boost, but it could also lead to side effects in sensitive individuals.
The Good
Provides a substantial dose of multiple B-vitamins, supporting energy metabolism.
Includes Vitamin D which is essential for overall health and immune function.
Contains Chromium, which plays a key role in glucose metabolism.
The Bad
Proprietary blend obscures individual ingredient dosages, limiting efficacy assessment.
High stimulant content may cause jitters, anxiety, and increased heart rate in sensitive individuals.
Rauwolfia vomitoria, an ingredient in the proprietary blend, carries potential side effects and drug interactions that warrant caution.
Is it for you?
Best For: Athletes, fitness enthusiasts, individuals looking for energy and fat support during workouts
Skip If: You are sensitive to stimulants, have heart conditions, or are pregnant/nursing.
Ingredients Analysis
Riboflavin
25 mgHow to Use
Mix one scoop with water 20-30 minutes before your workout. Assess tolerance with a half scoop first.
Daily (on training days)
Before workout
On an empty stomach or with a light snack
Who Should Use This
Best For:
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