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Nutrition Diet: What are the rules for the 21 day fast?

5 min read

A 2010 study published by the National Institutes of Health found that a 21-day dietary period in accordance with the Daniel Fast was well-tolerated and improved several risk factors for cardiovascular disease. This guide explores what are the rules for the 21 day fast, outlining the nutritional framework and spiritual principles behind this practice.

Quick Summary

The 21-day fast, often based on the Daniel Fast, is a strict vegan diet. It focuses on consuming whole foods like fruits, vegetables, whole grains, and legumes, while abstaining from animal products, processed foods, and sugar. This approach is used for spiritual growth and physical wellness.

Key Points

  • Embrace Whole Foods: The core rule is to eat only natural, whole foods such as fruits, vegetables, whole grains, and legumes, following the example of the prophet Daniel.

  • Avoid Processed Items: All animal products, refined grains, added sugars, preservatives, and processed foods are strictly forbidden during the fast.

  • Stay Hydrated: Water is the primary beverage, and staying well-hydrated is crucial for detoxifying the body and managing hunger.

  • Prepare Gradually: Taper off caffeine, sugar, and other restricted items in the days leading up to the fast to minimize uncomfortable withdrawal symptoms.

  • Break the Fast Slowly: Reintroduce foods gradually over several days after the fast to allow your digestive system to readjust without shock.

  • Focus on Spiritual Growth: This is more than a diet; it's a spiritual discipline. Use hunger pangs as a cue for prayer and reflection to deepen your faith.

In This Article

The Foundation of the 21 Day Fast: The Daniel Fast

The 21-day fast is a spiritual practice rooted in the biblical experience of the prophet Daniel. The book of Daniel describes two instances of fasting. In Daniel 1, he and his friends chose a diet of vegetables and water over the king’s rich food, proving healthier and stronger after just ten days. Later, in Daniel 10, he engaged in a three-week fast, abstaining from rich food, meat, and wine. Today, many people adopt this fast for 21 days as a means of spiritual discipline, purification, and drawing closer to God. It is a holistic journey that addresses the body, mind, and spirit, making it more than just a diet.

The Core Dietary Rules: What to Eat and Avoid

Following the 21-day fast, often a Daniel Fast variant, requires strict adherence to a plant-based, whole-foods diet. Success depends on understanding and committing to a clear list of approved and forbidden foods and beverages.

Foods Allowed (The "Yes" List)

The following categories of food are generally permitted during the fast:

  • Fruits: All fruits are allowed, whether fresh, frozen, canned, or dried, provided there is no added sugar.
  • Vegetables: All types of vegetables are permitted, including fresh, frozen, canned, or dried varieties.
  • Whole Grains: Acceptable grains include amaranth, barley, brown rice, buckwheat, millet, oats, quinoa, rye, spelt, and whole wheat.
  • Legumes: All varieties of beans, lentils, peas, and peanuts are included and serve as a primary protein source.
  • Nuts and Seeds: Raw, dry-roasted, or sprouted nuts and seeds are allowed, but check labels to ensure no added salt or sugar. Natural nut butters are also permitted.
  • Oils: Only high-quality, unrefined oils should be used sparingly for cooking. Options include olive, avocado, coconut, and grapeseed oils.
  • Herbs and Spices: All fresh or dried herbs and spices can be used for flavoring, though salt should be limited.
  • Beverages: The primary beverage should be water. Herbal teas without caffeine or sweeteners are also accepted.

Foods to Avoid (The "No" List)

To maintain the integrity of the fast, abstain from these foods:

  • All Animal Products: This includes meat, poultry, fish, eggs, and dairy products like milk, cheese, and butter.
  • Sweeteners: Avoid all forms of sugar and artificial sweeteners. This includes honey, agave nectar, corn syrup, and molasses.
  • Leavened Breads: Any bread or baked goods made with yeast or leavening agents are not permitted.
  • Refined and Processed Foods: Steer clear of white flour, white rice, packaged snacks, and foods with chemical additives or preservatives.
  • Deep-Fried Foods: This includes potato chips and french fries.
  • Solid Fats: Avoid solid fats such as margarine, lard, and shortening.
  • Certain Beverages: Do not consume alcohol, coffee, caffeinated teas, or carbonated drinks.

Preparing for Your 21-Day Fast

Proper preparation is key to a successful and meaningful fast. This includes both physical and spiritual planning.

Physical Preparation

  • Ease into the Fast: About a week before you begin, start reducing or eliminating your intake of processed foods, caffeine, sugar, and animal products. This helps to mitigate withdrawal symptoms like headaches.
  • Increase Hydration: Start drinking more water in the days leading up to the fast.
  • Stock Your Pantry: Plan your meals and create a grocery list for the first week to ensure you have all the compliant foods on hand, which helps prevent temptation.
  • Consult a Physician: Always speak with a healthcare professional before starting an extended fast, especially if you have pre-existing medical conditions, are pregnant or nursing, or take medication.

Spiritual Preparation

  • Set Intentions: Identify the purpose of your fast, whether for guidance, wisdom, or a deeper relationship with God. Write down specific prayer requests.
  • Plan Your Prayer Time: Schedule dedicated time each day for prayer, reflection, and scripture reading. Using a journal to record your thoughts and spiritual insights is often helpful.
  • Fast from Distractions: Consider also fasting from non-food items like social media, television, or entertainment to increase focus.

A Comparison of Daniel Fast Food Categories

Allowed Foods Not Allowed Foods
Fruits (fresh, frozen) Animal products (meat, dairy, eggs, fish)
Vegetables (all types) All sweeteners (sugar, honey, agave)
Whole grains (brown rice, oats, quinoa) Leavened breads (containing yeast or baking soda)
Legumes (beans, lentils, peas) Refined grains (white flour, white rice)
Nuts and Seeds (unsalted, raw) Processed foods (chips, packaged snacks, additives)
Unrefined oils (olive, coconut, avocado) Solid fats (margarine, shortening)
Water and herbal tea Caffeinated beverages (coffee, tea), alcohol, soda

Potential Challenges and How to Overcome Them

Embarking on a 21-day fast can be challenging, but anticipating common issues can help you navigate them successfully.

  • Managing Cravings: Intense cravings for sugar, caffeine, or other forbidden foods are common, especially in the first week. Focus on your spiritual purpose and use hunger pangs as a prompt for prayer.
  • Physical Discomfort: You may experience withdrawal symptoms like headaches, fatigue, or irritability. Increasing your water intake can often help. These symptoms typically subside within the first few days as your body adjusts.
  • Digestive Adjustments: The high fiber content of the diet might cause bloating or gas if your body isn't accustomed to it. Gradually increasing fiber intake before the fast can help, as can staying well-hydrated.
  • Social Challenges: Navigating social situations involving food can be awkward. It can help to inform family and friends of your intentions beforehand and find alternative ways to socialize.

Concluding the Fast: The Refeeding Process

Breaking a fast is just as important as starting it correctly. A sudden reintroduction of heavy, processed, or sugary foods can cause severe digestive upset.

Follow these steps to transition back to your normal diet smoothly:

  • Day 1: Break the fast with simple, fresh fruit like watermelon or grapes.
  • Day 2: Introduce raw salads and small amounts of simple steamed vegetables.
  • Day 3: Add baked potatoes or other cooked vegetables.
  • Day 4: Reintroduce small amounts of animal protein, such as chicken or fish.
  • Day 5 and beyond: Gradually increase the variety of foods while focusing on whole foods, similar to the principles of the fast.

Conclusion

The 21-day fast, often inspired by the Daniel Fast, is a profound experience for both spiritual and physical rejuvenation. By adhering to a strict whole-foods, plant-based diet and dedicating time to spiritual disciplines, participants can experience enhanced clarity, self-control, and a deeper connection with their faith. While challenges like cravings and physical discomfort may arise, the mental and spiritual benefits are often seen as a powerful reward. This practice serves as a tool for cleansing the body of processed elements and resetting one's relationship with food, offering lasting insights into a more mindful and disciplined lifestyle.

Frequently Asked Questions

While weight loss can be a side effect, the primary purpose of the Daniel Fast is spiritual, not weight loss. The focus is on drawing closer to God and exercising self-discipline through dietary restrictions and prayer.

No, caffeinated beverages like coffee and tea are not permitted. The fast is also an opportunity to abstain from stimulants and rely on the energy derived from nourishing foods and spiritual practices.

Yes, all leavened bread, meaning anything made with yeast or other leavening agents, is forbidden. Unleavened, whole-grain flatbreads without sugar or preservatives are permitted in some interpretations.

Cravings are normal, especially in the early stages. Focus on your spiritual intentions, drink plenty of water, and ensure you are eating enough of the permitted foods to feel satisfied. Some people use hunger as a trigger to pray.

Yes, but moderate exercise is recommended. You may feel less energetic initially, so listen to your body and don't overdo strenuous activity, especially in the first few days.

If you make a mistake, don't get discouraged or give up. Confess it, and get right back on track with your fast. The journey is about intentionality, not perfection.

Break the fast gradually over several days by slowly reintroducing solid foods. Start with light foods like fresh fruit and vegetable soup, and gradually add other food groups back into your diet.

Yes, unsweetened plant-based milks, such as almond milk, are allowed. Be sure to check the label for any added sugars or non-compliant ingredients.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.