GI-related issues
Hello, doctor!
1.
I am a student with a BMI of over 20, but compared to others of the same height, my thighs and buttocks are noticeably smaller, while my waist is relatively slim.
Why is this? Are there ways to improve it? (I spend most of my time in school and tutoring, so I can't avoid sitting for long periods.)
2.
I recently started a weight loss plan focusing on a low-GI diet.
Should I eat low-GI foods before high-GI foods, or are high-GI foods really not advisable? (As a student, I can't prepare my own meals, and my family's staple food is white rice, which has a very high GI.)
3.
Which meal is better for high protein intake, breakfast or dinner? If one meal consists entirely of carbohydrates and the other entirely of protein, which should be higher in carbohydrates and which should be higher in protein? (This is just an extreme example; I will still maintain a balanced intake!)
4.
How long before and after meals should fruits be consumed for someone trying to lose weight? I found conflicting information online: one source says eating fruits on an empty stomach can spike blood sugar levels, leading to fat storage (similar to high-GI foods), while another suggests that eating fruits after a meal can cause them to stay in the stomach longer, leading to an acidic body environment that hinders weight loss and nutrient absorption.
Sorry for asking so many questions at once!
Lin Tongxue, 10~19 year old female. Ask Date: 2016/03/25
Dr. Li Zhiyao reply Internal Medicine
Hello: 1.
To achieve a good physique, in addition to dietary control, exercise is also essential.
2.
Your BMI is approximately 20, so there is no need for weight loss; therefore, questions 3 and 4 are irrelevant (do not trust online information; consulting a nutritionist is the best approach).
In summary, controlling total caloric intake, maintaining a balanced diet, and exercising are necessary factors for attaining a good physique.
Reply Date: 2016/03/25
More Info
Hello! It’s great to see you taking an interest in your health and nutrition. Let’s address your questions one by one, focusing on how to manage your weight effectively while considering your lifestyle as a student.
1. Body Composition and Fat Distribution: It’s common for individuals with a similar BMI to have different body compositions. Factors such as genetics, muscle mass, and fat distribution play significant roles in how your body looks. For instance, some people naturally store more fat in their thighs and hips, which is often referred to as a "pear-shaped" body. To improve this, consider incorporating strength training exercises that target your lower body, such as squats and lunges, which can help tone and build muscle in those areas. Additionally, try to incorporate more movement into your day, even if it’s just standing or stretching during breaks from studying.
2. Low GI Diet: The Glycemic Index (GI) measures how quickly foods raise blood sugar levels. Low GI foods are digested more slowly, providing a steadier source of energy. While it’s beneficial to focus on low GI foods, it’s not necessary to completely eliminate high GI foods. Instead, aim to balance your meals. For example, if you have white rice (high GI), pair it with protein and healthy fats (like chicken and avocado) to lower the overall GI of the meal. If you can’t prepare your meals, try to choose whole grains or brown rice when available, as they have a lower GI than white rice.
3. Protein and Carbohydrate Timing: Both protein and carbohydrates are essential for a balanced diet, especially for students who need energy for studying and activities. Generally, it’s beneficial to have a source of protein in every meal to support muscle repair and growth. If you’re considering a meal with high protein, breakfast can be a great time to include it, as it helps kickstart your metabolism for the day. However, having a balanced approach is key; you don’t need to completely separate carbs and proteins. Instead, aim for a mix of both in each meal to maintain energy levels and satiety.
4. Fruit Consumption Timing: The timing of fruit consumption can vary based on personal preference and digestive comfort. Eating fruit before meals can help control hunger and provide essential nutrients, but if you find that it causes discomfort or spikes your blood sugar, you might prefer to eat it after meals. The idea that eating fruit after meals can lead to poor absorption is a myth; your body is quite capable of digesting fruit alongside other foods. The key is moderation and listening to your body’s signals.
In summary, focus on a balanced diet that includes a variety of foods, prioritize low GI options when possible, and incorporate physical activity into your routine. Remember that small, consistent changes can lead to significant improvements over time. If you find it challenging to manage your diet and exercise, consider consulting a nutritionist who can provide personalized guidance based on your specific needs and circumstances. Good luck on your journey to better health!
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