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We all know, basically, how to lose weight: Eat less. Exercise more. But to get ourselves to actually do it, it helps to get some brisk, quotable advice from people who spend their careers talking about nutrition. “Their best advice, on the house,” is how Women’s Health puts it in an article headlined “12 Nutritionists Share the Top Tips They Give to Clients Trying to Lost Weight.”

Here are a few examples.

Be nice to yourself. “All too often we revert to negative self-talk. . . . ‘You look so fat in that’ might pop into your head when you talk to yourself, but you would never use such harsh words to someone dear to you. . . . That negative talk could lead to apathy, overeating, and dietary sabotage.”

— Bonnie Taub-Dix, author of “Read It Before You Eat It”

Stop dwelling on what you shouldn’t eat. “Focus on the foods and drinks you should be saying ‘yes’ to, rather than focusing on ones you should cut. If your mantra is ‘no junk food,’ it’s likely that junk food — the very thing you are trying to avoid — is top-of-mind.”

— Tori Holthaus, founder of YES! Nutrition

Make a plan. “Plan out your meals and snacks in advance, grocery-shop based on those meals and snacks, prep food ahead of time, and think through the ways you can incorporate your favorite unhealthy foods in moderation. In my experience the people who plan are the ones that succeed.”

— Wesley Delbridge, spokesman for the Academy of Nutrition and Dietetics

Take things slow. “Don’t try to change everything about your diet at once. Start by making one improvement in what you’re eating or one improvement in how much you’re eating, but don’t try to change both at once. Ease into it.”

— Georgie Fear, author of “Lean Habits for Lifelong Weight Loss”

Eat whole, not “health” foods. “Weight loss will happen as a side effect of choosing whole foods that provide the nutrients you need. New research demonstrates that foods labeled as ‘healthy,’ like ‘healthy cookies,’ may be contributing to the obesity epidemic because people are more likely to overeat them.”

— Brigid Titgemeier, registered dietitian nutritionist at Cleveland Clinic’s Center for Functional Medicine