Why Juice Fasting Is a Bad Idea


As I have mentioned in my Meet Jillienne page, I have tried many types of crazy cleanses.  In college, I did a colon cleanse for a month.  Last year before a Cabo vacation, I dropped 5 lbs on a seven day cleanse.  (Talk about unhealthy! When trying to lose weight, the average person should only lose one to two lbs per week). But  I would try just about anything to drop the pounds quickly.

About six months ago, I tried a juice cleanse. I did very little research besides watching Fat, Sick, and Nearly Dead before I bought a juicer on Amazon.  (This was problem #1! ) In the documentary, Joe Cross only drank fruit and vegetable juice for 60 days.  He lost around 100 lbs and cured his autoimmune disease.  I was convinced this was what I needed to try.

Over the next month, I went on mini juice fasts, though never longer than 3 days.  I also drank one glass of fruit/vegetable with my normal diet every single day.  During the cleanse, my skin started to glow, my acne clear up, and I lost weight.  However, I was constipated, tired, and often light headed.   Although drinking fruit/vegetable juice is a great way to get vitamins from many different sources because it takes a lot of fruit and vegetables to make one glass of juice, you remove most of the fiber.

On a juice cleanse you are not getting any protein or fats either, unless you throw in a few chia seeds, but that’s not sustainable. Your hormones will be thrown out of whack.  The constraint spikes of sugar from the juices in your bloodstream increase the release of insulin, a hormone that ushers sugars directly into your liver where they are converted into glycogen to be used by your muscles.  It’s important to maintain low levels of insulin so your body can more easily tap into your stored fat for fuel.

Since toxins from food are stored in fat cells and juice cleanses (and other detoxes for that matter) promote rapid fat loss, toxins may be released in the blood stream causing symptoms such as headaches, sore muscles, weakness, and irritability.  Our bodies naturally remove these toxins as we sweat during exercise, thus avoiding said symptoms.  Also, the lack of adequate protein intake from omitting animal products and legumes may diminish muscle mass, and therefore slow down your metabolism.  Juice cleanses also mess with the probiotics in your digestive tract.

While I don’t think juice cleanses are necessary, I do think incorporating a fruit/vegetable juice with breakfast or lunch is a great idea.  It is a fantastic way to consume multiple vitamins that can quickly be absorbed into the blood stream; however, our bodies need protein, fat, and fiber.

Fasting is not the answer to a healthy lifestyle.  Eating clean, organic foods will detoxify the body.  Food can be our medicine if we use it properly.


Below is a list of healing foods that can be incorporated in your diet:

  • Apples: Tonic, Digestive Diuretic, Detoxifying, Laxative, Antiseptic, Lower blood cholesterol, Antirheumatic, Liver stimulant.
  • Asparagus: Antioxidant, Anticancer, Anti-cataracts, Diuretic, Promotes Healing
  • Beets: Antibacterial, Antioxidant, Tonic, Cleansing, Laxative
  • Citrus Fruits: Antioxidant, Anticancer
  • Garlic: Antimicrobial, Antibiotic, Cardioprotective, Hypotensive, Anticancer, Diaphoretic, Anticoagulant, Lowers blood cholesterol, Lowers blood sugar level, Expectorant, Digestive Stimulant, Diuretic, Antihistamine, Antiparasitic
  • Ginger: Antinausea, Relieves headaches and arthritis, Anti-inflammatory, Circulatory stimulant, Expectorant, Antispasmodic, Antiseptic, Diaphoretic, Anticoagulant, Peripheral vasodilator, Anti-emetic, Carminative, Antioxidant
  • Leafy Greens: Antioxidant, Anticancer
  • Parsley: Antioxidant, Tonic, Digestive, Diuretic
  • Pears: Antioxidant, Protects the colon
  • Spinach: Anticancer, Improve memory, Antioxidant, Promotes healing, Anti-cataracts, Anti-anemia


5.0 from 1 reviews

Healing Green Juice
Prep time: 
Total time: 

Serves: 1

  • 1 apple
  • ½ cucumber
  • ½ lemon
  • ½ kale bunch
  • 1 handful parsley
  • 1 inch cube ginger

  1. Wash and then combine all ingredients in a juicer. Note: peel the lemon before juicing.


This juice is a little tart and not very sweet, but it’s loaded with vitamins and antioxidents.  What are your favorite juice mixtures?

16 thoughts on “Why Juice Fasting Is a Bad Idea

  1. I really needed to see a post like this, so thanks for all this wonderful info! I had been considering doing a juice cleanse for a while now. I’d never done much research on it, but was always kind of hesitant about actually taking the plunge and doing it. Now I’m glad I didn’t because your post pretty much confirmed all my hesitation and doubts.

  2. Happy to see this I love these healty foods and would rather be chewing my food ratther than drink it. I love all your research.

  3. Great info! As usual! Laughing because I was just watching that movie on netflix! Haha! I did see the same benefits as you as far as my skin. And you know how my skin is.But I never did a complete “fast”. Thank you for doing all the searchin’ and putting it all together! Love it!!!

    • I’m glad you liked the post. I found that even drinking one glass of juice per day helped my skin. It really did glow during that time. Right now, I’m experimenting with oil pulling on my face. I will write a post about that in the near future.

  4. I enjoy a fresh juice from the vibrant menu of Jason Vale everyday. It’s my lifestyle. I don’t feel the need to lose any weight so I drink up purely for the remarkable nutrition. However, I wouldn’t want to go on a juicing fast, with only guzzling down the sweet nectar, and not polishing off any yummy Romanian cuisine. Why? Simply because I love my food too much!

  5. I was just researching this very thing because I have a good friend who is doing a thirty day juice fast. I’m a bit concerned and this info confirms why! Her juices only consist of about 600 Valerie’s because she just can’t drink anymore than three per day.

  6. THANK YOU for this post!!! It drives me INSANE to hear presumably “health-conscious” people tout the benefits of fasting (juice, or otherwise). As you say, our bodies do an excellent job of getting rid of what they don’t need naturally–as long as we eat real, natural foods, exercise, and stay hydrated. :) Short-lived cleanses and fasts often do little to bolster our health, and have the detrimental effects of fooling us into thinking we should be able to lose weight fast–as if losing weight is the hallmark of getting healthy!!! Here’s hoping this post saves a few people from impatient and unhealthy diets!
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