Almonds are a fantastic source of antioxidants.
Antioxidants help to protect against oxidative stress, which can damage molecules in cells and contribute to aging and diseases like cancer (4, 5).
The powerful antioxidants in almonds are largely concentrated in the brown layer of the skin (6, 7, 8).
For this reason, blanched almonds (skin removed) are not the best choice from a health perspective.
A clinical trial of 60 male smokers found that 84 grams (about 3 ounces) of almonds per day reduced oxidative stress biomarkers by 23-34%, over a 4 week period (9).
These findings support those of another study, which found that eating almonds with main meals reduced some markers of oxidative damage (10).