Okay, I need to write an original article about "How To Lose Weight Fast" using the provided context and requirements. Let me start by understanding the user's needs. They want a concise, factual, SEO-friendly HTML article with specific tags like h2, h3, p, ul, ol, li, strong, and em. No markdown fences, just safe HTML. First, I'll outline the structure. The article should have a main heading, maybe an introduction, then several sections with subheadings. The context provided includes elements like the best fat loss diet, HIIT workouts, mentions of supplements (whey protein, creatine), and links to fitness plans. I need to incorporate these points without making unsupported claims. The user mentioned avoiding unsupported claims, so I need to be careful. For example, when talking about dropping 5 pounds quickly, I should explain that it's possible through a calorie deficit but not to overstate results. Also, the HIIT workout should be described as effective but not promise instant results. I should start with an introduction that emphasizes healthy weight loss strategies. Then, sections on diet, exercise, lifestyle, and perhaps supplements. The context has links to products and services, so I need to include those as per the given URLs but make sure they're relevant and not too pushy. Maybe place them in a section about tools or resources. The user included some French text about sports clothes and Inshape Nutrition. Since the main article is in English, I should probably translate the links or mention them in context. However, since the user wants the article to be in English, maybe just include the links as provided without the French text. Wait, the original context has "Mes vêtements de sport INSHAPE ▻ https://urlr.me/b83dus..." which is French. Should I include that? The user wants the article in English, so maybe rephrase it as "Sports clothes from INSHAPE" with the link. Similarly for the other link about whey protein and creatine. Also, there's a link to a fitness plan from BWS. Need to include that as a resource for a customized plan. And a mention of following on Instagram, but maybe that's for the video context. Since the article is text-based, maybe just include the relevant links without the social media part. Let me structure the sections: 1. Introduction: Fast weight loss is possible but should be healthy. 2. The Science of Weight Loss: Calorie deficit, metabolism. 3. Diet Strategies: Calorie deficit, macronutrients, protein, avoiding processed foods. 4. Exercise for Rapid Fat Loss: HIIT workouts, strength training. 5. Lifestyle Adjustments: Sleep, hydration, stress. 6. Supplements (if any): Whey protein, creatine (but note they are supplements, not magic fixes). 7. Tools and Resources: Links to fitness plans, sports gear. 8. Conclusion: Summary and encouragement. For each section, use h2 and h3 headings. Make sure not to use markdown, so all HTML tags are properly formatted. Now, check the context for specific phrases to include: "The BEST Fat Loss Diet", "Is it possible to", "Keep this in mind", "If you want to drop 5 pounds quickly", "Do This HIIT Workout", and the links. Also, avoid mentioning AI-generated content. Need to ensure the article is between 600-900 words. Let me estimate the word count. Each section can be 100-200 words. Maybe 6-7 sections. Also, avoid unsupported claims. For example, instead of saying "guaranteed results," use "can help" or "research suggests." Now, start drafting each section with natural headings, using the context where appropriate. Make sure to include the links provided, but present them as options, not as mandatory. For example, the link to the fitness plan can be presented as a resource for a customized plan. I need to check for keywords. The main keyword is "How To Lose Weight Fast," so include that in the title and subheadings. Also, related keywords like fat loss, calorie deficit, HIIT workout, etc. Avoid using markdown. So write the HTML directly with proper tags. Let me start writing the article now.