exercise performance

Is Blackcurrant Extract Supplementation Exercise Performance Randomized Trial safe?

Updated October 2026

Quick Answer

Blackcurrant Extract Supplementation Exercise Performance Randomized Trial has evidence relevant to safety, limits, and clinician-discussion contexts, but conclusions should stay close to the cited sources. One representative finding is: Results Caffeine intake increased average sprint speed ( p = 0.045, η 2 = 0.345) and reduced sprint time ( p = 0.030, η 2 = 0.463) during the m-LIST protocol.

Key Takeaways

  • 01Results Caffeine intake increased average sprint speed ( p = 0.045, η 2 = 0.345) and reduced sprint time ( p = 0.030, η 2 = 0.463) during the m-LIST protocol. [Nanavati K (2026)]
  • 02Serum free fatty acids concentrations increased over time ( p 2 = 0.900), with a significant NZBP × time interaction ( p = 0.005, η 2 = 0.433). [Nanavati K (2026)]
  • 03In contrast, caffeine-containing treatments were associated with improved sprint performance and lower perceived exertion. [Nanavati K (2026)]
  • 04Background/objectives Consumption of New Zealand blackcurrant extract for 7 days has shown to reduce slowing of sprint speed in recreationally active males. [Nanavati K (2026)]
The current Migaku evidence database contains 2 reusable source documents for Blackcurrant Extract Supplementation Exercise Performance Randomized Trial. This answer focuses on safety, limits, and clinician-discussion contexts. - Results Caffeine intake increased average sprint speed ( p = 0.045, η 2 = 0.345) and reduced sprint time ( p = 0.030, η 2 = 0.463) during the m-LIST protocol. [Nanavati K (2026); evidence level 4] - Serum free fatty acids concentrations increased over time ( p 2 = 0.900), with a significant NZBP × time interaction ( p = 0.005, η 2 = 0.433). [Nanavati K (2026); evidence level 4] - In contrast, caffeine-containing treatments were associated with improved sprint performance and lower perceived exertion. [Nanavati K (2026); evidence level 4] - Background/objectives Consumption of New Zealand blackcurrant extract for 7 days has shown to reduce slowing of sprint speed in recreationally active males. [Nanavati K (2026); evidence level 4] - Previous research examining the ergogenic benefits of blackcurrant supplementation (BC) on exercise performance is contradictory. [Morton LC (2025); evidence level 4] Evidence levels are sorting aids, not final clinical grades. Level 1 usually indicates systematic-review style evidence, level 2 indicates randomized trials or public-health guidance, and lower levels need more cautious wording. This page is educational. People with medical conditions, pregnancy, medication use, or unusual symptoms should ask a qualified clinician before changing supplements, medication, or treatment routines.

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Sources

  1. Individual and Additive Effects of Acute Intake of New Zealand Blackcurrant Powder and Caffeine on High-Intensity Intermittent Running Performance.
  2. No Effect of Acute or Chronic New Zealand Blackcurrant Extract on Cycling Performance or Physiological Responses in Trained Cyclists.