The Claim

Acute oral antioxidant supplementation with vitamins C and E and alpha-lipoic acid following six weeks of knee-extensor exercise training in six elderly men with mild hypertension reversed training-induced improvements in systolic blood pressure and flow-mediated dilation, returning both to pre-training levels.

Source: Oral antioxidants and cardiovascular health in the exercise-trained and untrained elderly: a radically different outcome.

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
45score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

In six elderly men with mild hypertension, taking antioxidant supplements after six weeks of leg exercise canceled out the blood pressure and blood vessel function improvements gained from the exercise, bringing them back to their original levels before training.

See the scientific wording

In six elderly men with mild hypertension, acute oral antioxidant supplementation (vitamins C and E, and alpha-lipoic acid) following six weeks of knee-extensor exercise training reversed the training-induced improvements in blood pressure and endothelial function, returning systolic BP to pre-training levels and reducing flow-mediated dilation to baseline.

Why this might work

Exercise increases reactive oxygen molecules in blood vessel walls, which signal the production of nitric oxide to relax vessels and lower blood pressure. Antioxidant pills remove these reactive molecules before they can send the signal, so nitric oxide is not made, vessels stay stiff, and blood pressure returns to its original high level.

Verified mechanismbased on 1 study

What the research says

1 study

  1. Study: Oral antioxidants and cardiovascular health in the exercise-trained and untrained elderly: a radically different outcome.

    In older men with slightly high blood pressure, exercise helped lower their blood pressure and improved their artery function—but taking antioxidant pills right after exercise wiped out all those benefits, bringing things back to how they were before they started exercising.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.