For example, Sarah Parsons asks:
“Does grapefruit juice burn fat?”
Aly Guevarra emailed me with this question:
“Hey…i was just wondering if its true that grapefruit burns fat?”
And Jill King wrote:
“Is Grapefruit a fat burner fruit?”
The Grapefruit Diet
Since the 1970s, the grapefruit diet has waxed and waned, with claims of kick-starting the metabolism and enabling rapid weight loss. For many, the weight loss may have occurred simply because they stopped eating many unhealthy foods for a while and underwent caloric restriction after converting to a monodiet of grapefruit. However, for most people, the weight came right back once they got off the diet.
Grapefruit’s Fat Burning Abilities
An recent study carried out by scientists in the Division of Endocrinology at Scripps Clinic (La Jolla, CA) showed that eating grapefruit helps with weight loss and insulin resistance. There was a significant difference in weight loss for those who consumed either fresh grapefruit or grapefruit juice over placebo. An average of 3.6 pounds was lost in 12 weeks for patients in the study, and insulin resistance improved. The authors concluded that “Although the mechanism of this weight loss is unknown it would appear reasonable to include grapefruit in a weight reduction diet.” These scientist know what happened but they don’t seem to know why it happened.
Why I Think Grapefruit Helps Weight Loss
Most nutritionists say that it’s unlikely that grapefruit has any magical properties which can cause weight loss in the absence of additional diet or lifestyle changes. Perhaps the reason for the weight loss is because frequent eating of grapefruit alkalinized the body. People know that citrus fruits are acidic, because the acid can burn the skin or mucous membranes.
When you use a piece of pH paper to test an orange, you will get an acid result. However, when citrus fruits are metabolized by the body, they turn into something called “alkaline ash.” That means they’ve been converted to something basic, or alkaline, even though they started out as an acid. When the body is too acidic, the biochemistry changes and weight loss becomes difficult.
In general, most fruits and vegetables are alkaline; meat, eggs and dairy products are acidic. Those who eat an imbalanced diet that leans too heavily on meat and dairy and does not include enough fruits and vegetables may end up with a body pH that is too acidic. Eating grapefruit, citrus fruits in general, or enough of any fruit or vegetable can alkalinize the body and spur weight loss.
Grapefruit And Drug Interactions
Grapefruit juice can interact with some medicines, causing more to be absorbed into the bloodstream than would otherwise occur. The end result is that blood levels of these medications could increase, leading to overdose symptoms and potential toxic side effects. Consult your physician or pharmacist for more information, or obtain literature on the drug you’re taking and see if anything is mentioned about grapefruit juice being contraindicated.
I hope this helps!
Once again, thanks for all your questions! As I’m writing this, I have 1,203 emails to go through!!