The short answer · Aerobic capacity (VO2 max)
Take ashwagandha for aerobic capacity (vo2 max). This is the one to buy.
Double Wood Supplements, Ashwagandha, 2 fl oz (60 ml)
$0.33/serving
Of 1,332 products scored for Aerobic capacity (VO2 max), Double Wood Supplements, Ashwagandha, 2 fl oz (60 ml) ranks #1 with a DoseRank score of 64. Ashwagandha has moderate human evidence for this outcome.
Retailer links may be affiliate links. Rankings and placement are never paid.
The form“Why Ashwagandha?”Evidence Moderate evidence
Ashwagandha has moderate human evidence for this outcome.
- AshwagandhaThe pick
Moderate evidence · 1200 mgE
Adaptogenic root (Withania somnifera) from Ayurveda; KSM-66 and Sensoril are the best-studied extracts, with strongest evidence for lowering cortisol and stress-related fatigue.
The dose“Is the dose actually effective?”Dose fit 40
Dose-range data is not available for this formula yet.
The ranking“Why should I trust this pick?”Trust 30
Limited trust signals so far for this listing. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.
- 1,332 products scored
- Never paid placement
- Evidence level: Moderate · 78
- 243 brands
- 6 ingredients
The price“Can I do better than $0.33 a serving?”Value 69
$0.33 per serving — mid price tier for this outcome. The cheapest ranked pick here is $0.22 per serving.
- 9Paradise Herbs, Ashwagandha, 250 mg, 180 Vegetarian CapsulesScore 60 · $0.22/servingiHerb
- 2Swanson Vitamins, Ultimate Ashwagandha, 250 mg , 60 Veggie CapsulesScore 63 · $0.24/servingiHerb
Why not the absolute cheapest? The DoseRank score also weighs clinical strength, evidence, dose fit and trust — the very cheapest listings rarely hold up everywhere else.
Ready?
The #1 pick is $0.33 a serving.Double Wood Supplements, Ashwagandha, 2 fl oz (60 ml) — in stock at a tracked retailer.
View on iHerbA saved, shareable breakdown: your matched products, dose math, and interaction flags to discuss with a clinician.
Or take the 60-sec quiz →Questions
Frequently asked
Double Wood Supplements, Ashwagandha, 2 fl oz (60 ml) ranks #1 for Aerobic capacity (VO2 max) with a DoseRank score of 64. The score blends clinical strength, evidence, dose fit, trust signals and value across 1,332 products scored for this outcome.