Health experts believe that Rosa roxburghii is a kind of cold food (hint: food can be simply divided into five attributes: cold, cool, warm, hot and flat). Cold food: pharmacological negative, clearing away heat, purging fire and cooling blood.
Detoxification and other effects, mostly suitable for heat stroke. However, some patients with hypertension belong to the constitution of yang deficiency, deficiency of both qi and blood or phlegm-dampness (hint: human body can be simply divided into six easy-to-get constitutions: constitution of yin deficiency, constitution of yang deficiency, constitution of both qi and blood deficiency, constitution of phlegm-dampness, constitution of blood stasis and constitution of qi stagnation). People with yang deficiency, qi and blood deficiency or phlegm-dampness constitution are afraid of "cold" diseases such as colds, indigestion or puffiness, so they should avoid cold food.
Therefore, the coldness of Rosa roxburghii just contributed to the "cold" syndrome of hypertensive patients. To sum up, patients with hypertension should not eat cold food such as Rosa roxburghii.