For the sake of keeping processed/synthetic ingredients out of your diet, focus on avoiding low-carb packaged foods — like most commercial protein bars or meal replacement shakes. These may provide fat and protein, and be low in sugar or carbs, but they’re still not beneficial overall if they contain things like processed protein powders, refined oils and artificial sweeteners.

Not everyone should opt for a low-carb diet. If you’re pregnant, it’s possible to be on a lower-carb diet (and may even be indicated if you are told you have gestational diabetes), but talk to your doctor to find out what’s right for you and to ensure that you’re covering any potential nutrient gaps. “Many women who are pregnant find that the thought of eating protein and fat makes them sick,” says Spritzler. This can be especially common in the first trimester. “They naturally want more carbs. You should always listen to your body,” she says.

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