What precaution should be taken while using St. John's Wort?

St. John's Wort is known for its potential to increase sensitivity to sunlight. This occurs because it contains compounds that can lead to phototoxicity, meaning that it can cause skin reactions when exposed to sunlight, such as rashes or severe sunburns. Individuals using St. John's Wort are often advised to take precautions against sun exposure by using sunscreen, wearing protective clothing, or limiting time in direct sunlight, especially during peak hours when the sun's rays are strongest.

While other options may seem relevant in various contexts, they do not specifically address the unique side effects associated with St. John's Wort. For instance, taking it with food can influence absorption but is not critical for this herb's use. Increasing fluid intake could be beneficial for overall health but does not pertain directly to the risks of St. John's Wort. Reducing exercise levels is generally not a specific precaution when taking this supplement and doesn't relate to its known side effects.