Optimal doses of barley as a food or supplement have not been established for any condition. However, to try to lower cholesterol, people have used one of these daily doses: 1  3 grams of barley oil extract. 2  30 grams of barley bran flour.
Still, the very best way to raise your body temperature is to go for a light jog - just get your heart pumping. Jogging/running is one of the easiest ways to get your heart pumping in a short amount of time and works throughout your whole body (as opposed to the heat pad).
For more on raising your BBT: Naturally Warmed Up, How to Raise Your Basal Body Temperature. Some links in our posts might be affiliate links. This means that, at no additional cost to you, I may earn affiliate marketing commission if you make a purchase.