Brenda Khan
It's not uncommon to experience negative side effects when starting a new diet. These can include fatigue, headaches, mood changes, and digestive issues like bloating and gas. There are several reasons why this might happen. Firstly, cutting out processed foods and sugar cold turkey can lead to withdrawal symptoms, including cravings, low blood sugar, and low energy. Secondly, a sudden increase in fiber-rich foods can cause bloating and discomfort until your body adjusts. Thirdly, a plant-based diet may lead to nutrient deficiencies in vitamin B12, vitamin D, and iron, which are necessary for energy and overall health. Finally, digestion and absorption of nutrients can be affected by various factors, such as stress, inadequate chewing, and food sensitivities, which can impact how well your body utilizes the nutrients from your diet. It's important to remember that everyone's journey is different, and it may take time for your body to adjust to a new way of eating.
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What You'll Learn
Withdrawal symptoms from caffeine, sugar, salt, and fat
When you start a new diet, it is natural to feel worse physically, mentally, and emotionally. This is because your body needs time to adjust to the new changes. For example, when you cut down on caffeine, sugar, salt, and fat, you may experience withdrawal symptoms such as:
Caffeine Withdrawal
Caffeine withdrawal can cause several symptoms, including:
- Headaches and migraines
- Fatigue
- Lack of energy
- Anxiety
- Irritability
- Low energy levels
- Tremors, usually in the hands
- Increased heart rate and blood pressure
The more caffeine you consume, the longer it will take for it to get out of your system. Caffeine has a half-life of about four to six hours, but this can range from one-and-a-half to nine-and-a-half hours. Caffeine withdrawal symptoms typically begin 12 to 24 hours after stopping caffeine intake, reach their highest point between 20 to 51 hours, and can persist for up to nine days.
Sugar Withdrawal
Suddenly reducing your sugar intake can make caffeine withdrawal-induced anxiety worse. It is recommended to make gradual changes to your diet, such as reducing the number of teaspoons in your coffee or tea or swapping your soda for flavored carbonated water.
Salt and Fat Withdrawal
Consuming big meals with too much salt, added sugar, and saturated fat can make you feel groggy. Eating smaller portions and ensuring your meals are rich in nutrients can help you feel more alert and energetic throughout the day. Eating whole-grain, fiber-rich foods can also help you feel full for longer and prevent energy spikes and crashes.
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Lack of dopamine from eating junk food
Eating healthier is a positive change, and it is natural to expect to feel better once these changes are implemented. However, it is common to experience an adjustment period where you may not feel your best physically, mentally, or emotionally. This can be extremely frustrating, but it is only temporary.
One of the reasons you may feel like crap when going on a diet is due to a lack of dopamine from eating junk food. Dopamine is a neurotransmitter that is released when we do something that encourages survival, such as eating. The brain interprets this as pleasure, and it is hardwired to seek out behaviors that release dopamine. Junk food can cause a release of dopamine in the brain that is much more powerful than the dopamine released from eating whole foods. This is because junk food, particularly those rich in sugars and fats, are potent rewards that trigger learned associations between the stimulus and the reward.
Frequent consumption of junk food may lead to dopamine tolerance. This means that a person will have to eat even more junk food to avoid going into withdrawal. If there are fewer dopamine receptors, the person will have very little dopamine activity and start to feel unhappy when they don't get their fix of junk food. This can lead to full-blown addiction, which shares the same biological basis as drug addiction.
If you are feeling like crap due to a lack of dopamine from junk food, it is important to remember that this is temporary and it is possible to rewire your brain to release dopamine from healthier behaviors. It is recommended to make gradual changes to your diet, rather than going cold turkey, to wean yourself off of junk food and reduce the chance of unwanted symptoms.
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Nutritional deficiencies, such as vitamin B12, vitamin D, and iron
Nutritional deficiencies can be a common issue when making significant changes to your diet, and vitamin B12, vitamin D, and iron are three key nutrients that you may be at risk of lacking when adopting a more plant-based diet.
Vitamin B12 is naturally found in animal products, so when you cut down on these, you may be getting less B12. This vitamin is crucial for energy and a range of other bodily processes. A B12 deficiency can lead to weakness and fatigue, and it can even affect your mental health, causing depression and mood changes.
Vitamin D is another nutrient that can be lacking in a plant-based diet, as it is predominantly found in animal sources, such as oily fish, red meat, and egg yolks. Vitamin D is unique as it can also be obtained through exposure to sunlight. This vitamin is essential for maintaining healthy bones, teeth, and muscles, and it also supports a healthy immune system. A vitamin D deficiency can lead to bone pain and muscle weakness, and it has been linked to an increased risk of developing certain cancers and type 2 diabetes.
Iron is a mineral that is present in animal products and some plant sources. It is essential for making red blood cells, which carry oxygen around the body. A lack of iron can lead to iron-deficiency anaemia, causing fatigue, weakness, and dizziness.
If you are experiencing negative side effects after making dietary changes, it is important to evaluate the nutrient content of your new diet. You can correct potential deficiencies by eating fortified foods or taking specific supplements, but it is important to be selective with supplements due to their lack of strict regulation. Consulting a registered dietitian can be helpful to ensure your nutrient needs are met.
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Detoxification and the release of stored toxins
The idea that you can feel unwell when starting a new diet is not uncommon. This is often referred to as the Herxheimer Reaction, a phenomena of feeling worse before feeling better. This is because your natural detoxification cycle encourages stored toxins and accumulated waste to be released from storage sites and into your blood before they are eliminated from your body.
Detoxification, or a full-body detox, is a term often used to describe specific diets or products that claim to rid your body of toxins, improve health, and promote weight loss. However, the body is fully capable of detoxifying itself without the need for special diets or supplements. The liver, kidneys, digestive system, skin, and lungs all work together to eliminate toxins from the body. While the body can handle toxins on its own, you can still support its natural detoxification system by staying hydrated, exercising, getting adequate sleep, and limiting alcohol and processed foods.
Toxins can refer to pollutants, synthetic chemicals, heavy metals, and processed foods, which can all negatively affect health. Detox diets often involve a period of fasting followed by a strict diet of fruit, vegetables, fruit juices, and water, but they rarely identify the specific toxins they aim to remove. There is little evidence that these diets help eliminate toxins, and they may even be unsafe or falsely advertised.
Instead of relying on a detox diet, focus on making gradual dietary changes to improve your overall health and support your body's natural detoxification processes. This can include increasing your intake of nutrient-dense and plant-based foods while reducing your consumption of added sugars and animal products. Remember that it's normal to experience an adjustment period when making significant dietary changes, and give your body time to adapt to your new healthy habits.
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Dietary changes being too drastic or sudden
Making abrupt and significant dietary changes can be challenging and may lead to unpleasant side effects. This phenomenon is often referred to as the "Healing Crisis" or the Herxheimer Reaction, where the body experiences a temporary worsening of symptoms as it releases toxins and accumulated waste. The intensity of this reaction depends on the magnitude of the dietary shift.
When you drastically alter your diet, your body needs time to adjust to the new routine. For example, if you suddenly eliminate all animal products, you may experience caffeine withdrawal, as many people do when they switch to a plant-based diet. This can result in symptoms such as headaches, fatigue, irritability, and brain fog. Similarly, going on a low-carb diet can lead to "keto flu" or the "low-carb blues," causing nausea, fatigue, mental fog, and dehydration.
Additionally, increasing your fibre intake too quickly can result in digestive issues like bloating, gas, and discomfort. This occurs because your digestive system needs time to adapt to efficiently process the higher fibre content. It is advisable to increase fibre intake gradually and ensure a balanced diet that meets your nutrient needs.
The speed at which you implement dietary changes can significantly impact how you feel. Making gradual adjustments allows your body to adapt and reduces the intensity of side effects. For example, instead of abruptly cutting out all sugar, you can reduce your intake gradually by decreasing the amount in your coffee or tea or swapping sugary drinks for flavoured carbonated water. This approach helps minimise sugar cravings and reduces the likelihood of unpleasant symptoms.
It is important to remember that everyone's experience with dietary changes is unique, and the time it takes to adjust can vary. While some people may adapt quickly, others may need more time for their bodies to acclimate to the new diet. It is essential to be patient and give your body time to adjust to the healthier routine.
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Frequently asked questions
It is common to feel sluggish and low on energy when starting a new diet. This could be because your body is finally putting resources into healing and resting. It could also be due to withdrawal symptoms from cutting out processed foods and caffeine.
Some common withdrawal symptoms include headaches, sleepiness, and irritability, and digestive issues like bloating, gas, and upset stomach.
To manage withdrawal symptoms, it is recommended to make gradual changes instead of going cold turkey. For example, reduce sugar intake gradually or swap soda for flavored carbonated water. Additionally, ensure adequate hydration by drinking plenty of water and considering electrolyte drinks.
It is important to ensure you are consuming a balanced diet with adequate nutrients. A registered dietitian can help guide you in making sustainable dietary changes and ensuring your nutrient needs are met. Additionally, remember that it takes time for your body to adjust to a new diet, so persistence is key.
