It’s not realistic to try to follow a “perfect” diet all the time — but smart swaps can help you keep your heart healthy without cutting out snacks you enjoy.

That’s according to Dr. Harmony Reynolds, a cardiologist at NYU Langone, who said in a TikTok video for Everyday Health that she avoids foods like bacon and potato chips for a healthier heart.

Reynolds told Insider it can be difficult to give dietary advice as a doctor because nutritional research often doesn’t provide clear answers on how food can influence health.

“We need so much more properly conducted nutrition science. A lot of recommendations we make are based on limited evidence, which leaves patients with the impression we change our minds often,” she said.

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Reynolds said based on available evidence, she opts to avoid certain foods and uses strategies to enjoy less healthy food in moderation.

Read more: Insider