It takes on average five days for the body to use up its glucose reserves (which come from eating carbohydrates) and start using fat as a primary fuel source. So after three days on the meal plan, it was still weeks too soon for me to observe any health benefits of the keto diet.
I experienced some symptoms of the "keto flu," including headaches and fatigue.
In 2017, the Journal of Medicinal Chemistry published a new review of existing studies on turmeric, which found the "miracle spice" may have only limited, if any, health benefits.
According to Urban Remedy's website, chlorophyll cleanses "your body and your mind" so you can be "at your peak self." The bitter-tasting lemonade is designed to boost energy and clarity.
I was skeptical. A quick Google search revealed that chlorophyll, a molecule that gives plants and algae their green pigment and traps light for photosynthesis, provides the same vitamins you get from eating whole fruits and vegetables. Research on its health benefits is ongoing.
Such convenience came at a price. The keto meal plan costs $210 for three days' worth of food.
By comparison, I could order delivery from San Francisco's low-carb-friendly food company, Kitava, three times a day for three days and spend only $126, plus service fees and tip.
After being diligent for about three weeks, I felt the difference of the keto diet.
Even on days when I ate bunless cheeseburgers for lunch, my energy was sky-high. I drank less coffee and felt more alert. And because protein and fat send signals to the brain when you've had enough to eat, my snacking was less frequent and I was more focused on work as a result.
But I've struggled to maintain the keto diet since my personal challenge.
In the first weeks on the diet, I experienced symptoms including headaches and fatigue, as well as urges to eat every sugary substance in sight. This phenomenon is known as the "keto flu."
Meal planning became a bore. I felt restricted to the same heavy foods, such as eggs, cheese, nuts, and avocados. There was little variety in my new routine.
Eating at restaurants was the hardest part. I ate taco fillings out of tortillas and scraped the breading off fried chicken. Every menu had just one or two things I could order guilt-free.
The keto diet, which first became popular in the 1920s as a treatment for epilepsy and diabetes, limits carbohydrates to no more than 50 grams a day. That's roughly the equivalent of a cup of white rice. (The US Department of Agriculture recommends 225 to 325 grams of carbs a day.)
On the keto diet, the body switches from burning carbs to burning fat as its primary fuel source — a process known as ketosis, which gives the diet its name. Adherents of the keto diet often fill up on healthy fats, as well as leafy greens and animal protein, in order to prime the body for this state.
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