While it is an active weight loss supplement, there is no scientific research that proves that it causes weight loss. In fact, the National Institute of Health does not recommend the long-term consumption of Senna tea. This is because long-term and high dosages can cause liver damage, heart function disorders, dehydration, abdominal pain, intestinal blockage, and diarrhea.
It seems intermittent fasting can help your mind as well as your body. Fasting has been shown to help improve memory your memory, reduce oxidative stress, and preserve learning function[*]. Some researchers believe that because humans went thousands of years where food was not readily available, they adapted to function at a high-level (both mentally and physically) while in a food-deprived state[*].
Dinner? That's miso soup with some chopped sea vegetables (like the Japanese nori, used to make sushi) snipped over top. Or you might choose a cup of brown rice with a few chopped vegetables mixed in. "Brown rice gives your body plenty of B vitamins, which is a stress reducer. It's very high fiber, will fill you up, will help you sleep, and will flush you out in the morning."
Depending on the type of “fasting” diet, you focus all your weight loss efforts into sticking to the severe restriction for either two days a week (as in the 5:2 diet) or every second day (for three to four days days a week), as in alternate-day fasting. Another variation is the 16-hour overnight fast where eating is restricted every day to an eight-hour window, such as 11am to 7pm. Across all types of intermittent energy restrictions diets, we don’t know the longer-term benefits or harms.
And Ian K. Smith, M.D. agrees. Dr. Ian is a Harvard graduate, founder of the SHRED Lifestyle, and the author several best-selling diet books. He explains that the liver, kidney, lungs, skin, and gastrointestinal system remove toxins that accumulate in the body. But following a detox diet full of natural foods can enhance the body's ability to cleanse. He adds, however, that dieters should make no assumptions about health when choosing a detox diet. "Detoxes have gotten very trendy, and many of them are unhealthy and quite dangerous."