By Alysa Bajenaru, RD
You may have heard celebrities touting the health benefits of an alkaline diet, but what is it and should you be following their lead?
An alkaline diet is typically defined as consuming 80% alkaline-forming foods and 20% acid-forming foods. But if we're using the words alkaline and acid to define a diet, we first need to talk about pH.
You probably remember from science class that pH measures how acidic or basic a solution is.
When it comes to the human body, there are strict controls in place to make sure the blood pH remains right around 7.4. Anything outside of this tight range is life-threatening. The good news is, no matter what you eat or drink, your body will maintain this delicate balance.
The foods you eat won't change your pH levels, but they will affect how hard your body has to work to keep that 7.4 level steady. That's where the alkaline diet comes in.
Just because a food is acidic in nature, doesn't necessarily mean it forms acid in the body. To find out the acid- or base-forming potential of foods, we actually look at something called the potential renal acid load, or PRAL, a value that measures acid excretion in the urine.
You can find more complete lists and charts online, but you can see that the first step in following a more alkaline diet is to increase your consumption of fruits and vegetables.
If your diet looks more like the second column, your body is working harder to maintain that pH balance by releasing alkalizing minerals such as calcium and magnesium into the blood to buffer the acid. An acid-forming diet is low in these minerals, which means the body must get them from where they are stored in your bones—this may be a risk factor for osteoporosis.
Increased fruit and vegetable intake has been linked with lower rates of osteoporosis, cardiovascular disease and other chronic diseases. Combine this with a lower intake of acid-forming foods, and you find even more health benefits like improved muscle retention and cognitive function. One study even showed a decrease in lower back pain when supplementing with alkaline minerals.
The bottom line is that eating more fruits and vegetables is always a good idea, and reducing inflammation and acid-formation in the body has multiple benefits for long-term health.
Ingredients:
Instructions:
Blend all ingredients together until smooth. Serve over ice or at room temperature (my favorite).
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