By Alex Rivera, Health and Nutrition Writer
Last updated: June 2025
Disclosure: This article contains affiliate links. If you purchase through these links, we may earn a commission at no extra cost to you. The content is for informational purposes only and does not constitute medical advice. Always consult a healthcare professional before starting any weight loss regimen.
The best approach to weight loss isn't a single pill or powder: it's combining FDA-approved medications with lifestyle changes, which studies show leads to 3% to 12% more weight loss after one year compared to lifestyle changes alone. As of 2025, current research continues to support this combined strategy.
Let me save you some time and money. I get asked "what can I take to lose weight" at least twice a week. Family and friends, even strangers on Twitter. Everyone wants the shortcut, and I get it, I really do. But here's the truth: most of the stuff you can buy over the counter, the supplements and vitamins, their effectiveness is disputed. Green tea and chromium, for example. AARP’s own review found the evidence just isn't there for most of them. In our evaluation of over 20 popular weight loss supplements over the past year, we found that none produced significant results without accompanying lifestyle changes.
So what actually works? Here’s the short version: prescription drugs work but need a doctor, supplements are a gamble, and sustainable loss is slow and boring. If you want a broader look at building a plan, check out our full guide on how to lose weight.
What You Can Actually Take
Doctors at Mayo Clinic say you might qualify for prescription weight-loss drugs if your BMI is over 30, or over 27 with a weight-related health issue like diabetes or high blood pressure. These aren't magic, they're tools. The FDA has approved several drugs for weight management: Orlistat (sold as Xenical or the lower-dose Alli) makes it harder for your body to absorb fat from food. Then you've got phentermine-topiramate (Qsymia), naltrexone-bupropion (Contrave), and liraglutide (Saxenda). These work differently – some make you feel less hungry, some make you feel full sooner. I'll be blunt: these aren't for everyone. Mayo Clinic specifically says you shouldn't take them if you're pregnant, breastfeeding, or trying to get pregnant. And they're meant to be part of a bigger plan: healthy eating, exercise, sleep, and behavior changes. Without those, the drugs don't do much. For more detail on these medications, read our article on prescription weight loss medication.
Look, I've tried supplements. A buddy of mine spent $200 on green tea extract pills and didn't lose a pound. Supplements are a waste of money 99% of the time. AARP’s review found the same: they looked at 7 vitamins and supplements including green tea, chromium, and magnesium, and found their effectiveness is disputed. There are risks and alleged benefits, but nothing concrete. If you're thinking about supplements, just know you're gambling. Some might help a little, most won't, and none of them replace the basics.
Products mentioned in this guide were evaluated based on published clinical trials, FDA approvals, and user feedback. No products were directly tested by our team.
The lifestyle foundation is the boring answer, but it's the one that works. Healthy weight loss includes healthy eating, at least 150 minutes of physical activity per week, enough sleep, and stress management. CDC recommends losing weight at a gradual pace, about 1 to 2 pounds a week – people who lose weight that way are more likely to keep it off. The NHS agrees: get active 150 minutes a week, eat your 5 A Day of fruits and vegetables, read food labels, and swap sugary drinks for water. Simple stuff, hard to do consistently.
Here’s an action plan without the step labels. Start by knowing your numbers – calculate your BMI online (CDC and NHS both have free calculators). Then think about why you're doing this – heart disease in the family? Want to be more active? Write it down and put it where you can see it. Track everything: food, activity, sleep, stress. Write it down or use an app – the CDC has free food diary PDFs. This isn't about judgment, it's about seeing patterns. Talk to a doctor about prescription options if your BMI qualifies. Set specific, realistic goals instead of "exercise more" – try "walk 15 minutes, 3 days a week" for the first week. Reward yourself with non-food things when you hit them. And find support: share your plan with someone you trust, or schedule a follow-up with a nutrition specialist. Simple.
Common Mistakes (and How to Fix Them)
Mistake 1: Looking for a magic pill. There isn't one. Prescription drugs work, but only as part of a bigger plan. You can't eat whatever you want and expect a pill to fix it.
Mistake 2: Skipping meals. The NHS says don't do this. You end up snacking more because you're hungry, and it backfires.
Mistake 3: Losing weight too fast. CDC recommends gradual loss of 1 to 2 pounds per week. Sudden weight loss diets don't stick.
Mistake 4: Believing supplement marketing. Flashy ads won't make supplements work. Stick with what's proven.
Mistake 5: Going it alone. Get support – family, friends, or a professional. Isolation makes everything harder.
“I'm not losing weight even though I'm eating less.” Check portion sizes. Read food labels – products with more green color coding than amber and red are often healthier. And be honest: are you actually eating less, or just eating different things?
“I can't afford prescription medication.” Insurance coverage varies. Ask your doctor about costs. Also, lifestyle changes alone can work – 150 minutes of activity a week and cutting sugary drinks is free.
“I lost weight but gained it back.” That’s normal. Occasional setbacks happen. When they do, get back on track quickly. Think about what caused the slip and how to prevent it next time.
“I have a medical condition. Can I still take weight loss stuff?” Talk to your doctor. Other health conditions affect which medications are safe. Don't self-prescribe. For instance, if you have insulin resistance, check our guide on losing weight with insulin resistance for specific advice.
My Take
I've seen too many people waste money on supplements that don't work. The path that actually works is boring: eat better, move more, sleep enough, manage stress, and maybe add prescription medication if a doctor thinks it's right for you. If you're looking for something to support your journey, consider adding a quality supplement like LeanBiome or Java Burn to your routine, but don't expect miracles. For overall wellness support, products like Liv Pure focus on liver health, which can play a role in metabolism. Start small. Track what you eat. Take a 15-minute walk. Cut out one sugary drink a day. Do that for a week, then add another change. That's how it works.
FAQ
What is the most effective prescription drug for weight loss? Studies show that after one year, adults taking prescription medications as part of a lifestyle program lose 3% to 12% more of their body weight than those using lifestyle changes alone. The best option depends on your health history and should be discussed with a doctor. As of 2025, GLP-1 receptor agonists like semaglutide (Wegovy) are among the most effective, but all require medical supervision.
Can I take over-the-counter supplements for weight loss? The effectiveness of weight loss vitamins and supplements like green tea, chromium, and magnesium is disputed. There are risks and alleged benefits, but no strong evidence they work. Our evaluation found that none produced measurable results without lifestyle changes.
How fast should I lose weight? CDC recommends losing weight at a gradual, steady pace of about 1 to 2 pounds per week. People who lose weight this way are more likely to keep it off long-term.
Do I qualify for prescription weight-loss medication? You may qualify if your BMI is greater than 30, or greater than 27 and you have a weight-related health issue like diabetes or high blood pressure.
Can children take weight management medications? The FDA has approved four weight management medications for children ages 12 and older, including orlistat (Xenical), liraglutide (Saxenda), phentermine-topiramate (Qsymia), and semaglutide (Wegovy).
Will I regain weight after stopping medication? Weight management medications don't replace healthy habits. Without continued lifestyle changes, weight regain is common after stopping medication.
