我有次买东西从Amazon，没到$35 for free shipping. 我就买了pH试纸凑足$35. :)

The first morning rise and shine urine should also be 6.8 – 7.2. Because you are measuring all of the metabolic acids that have been stored in your body overnight, it will usually be slightly more acidic.

If your pH is below 6.8, you are overly acidic and low in alkaline buffers, and need to increase your alkalinity with more alkaline water, and organic greens high in the minerals calcium, magnesium and potassium. If you are 7.2 or higher, you are doing great. You have the alkaline buffers needed to neutralize acidity in your diet and lifestyle.

Bacteria causing a urinary tract infection or bacterial contamination will produce alkaline urine. A diet rich in citrus fruits, most vegetables, and legumes will keep the urine alkaline. A diet high in meat and cranberry juice will keep the urine acidic.