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I'm a Doctor, and These Are 5 Things I Will Never Do to Lose Weight

Here is what you shouldn’t do to lose weight.

Do you want to lose weight and keep it off without going to drastic extremes? Jenny Le, DO (@dr.jennale) is a family medicine physician and social media influencer who regularly shares weight loss tips. In a new video, she reveals a handful of things you should never do to lose weight. "Who believes in sustainable weight loss?" she asks in the clip. "These are five things that I would not do or recommend, and it might be a little bit controversial." Body Network's Resident RDN, The Diet Diva Tara Collingwood, also weighs in.

No Fat Burners

BCAA branched chain amino acid text made of powder on grey background with scoop and dumbbell used by bodybuilders before workout as a pre-workout supplementation

Her first suggestion is to avoid weight loss drugs. "Number one, I will never recommend fat burners, detox teas or BCAAs," she says. "They don't work."

Body Network's Expert Weighs In


Fat burners "don't work, and they can be dangerous depending on the person, medical history, and medications taken," says Body Network's Resident RDN, Tara Collingwood, MS, RDN, CSSD, LD/N, ACSM-CPT, a Board Certified Sports Dietitian and co-author of the Flat Belly Cookbook for Dummies.

Avoid Severe Calorie Deficit


Number two, she recommends avoiding a severe calorie deficit. "If you're eating 1200 calories, that is how much a toddler needs to eat," she reveals. "It's not sustainable, and it will lead to binge restriction."

Body Network's Expert Weighs In

Weight loss fail concept. Scale and depressed, frustrated and sad woman lying on floor holding head and covering face with hands.

Collingwood agrees. "Too few calories not only cause someone to be very grumpy but also can lead to losing more muscle than fat, reduction in metabolism, increased risk of binge, and yo-yo weight gain," she says. 

Avoid Keto

Keto picture.Flat lay of Keto diet food ingredients on white table.Ketogenic mean Low carb and High fat.Healthy food Concept.

"Number three, I don't recommend keto," she says, adding that it is really bad for your cholesterol. "It can lead to cardiovascular disease," she says. "Not sustainable."

Body Network's Expert Weighs In

Zero waste food shopping. Fruit and vegetables in cotton bags, pasta, cereals and legumes in glass jars, herbs and spices on wooden background. Healthy food, clean eating, eco friendly, no plastic con

Collingwood agrees that you should avoid the low-carb diet. "Keto is way too high in fat and is deficient in a lot of important nutrients you get from fruits, veggies, and whole grains," she says. 

Avoid CrossFit

Fit young man in sportswear focused on lifting a dumbbell during an exercise class in a gym

"Number four, I don't recommend CrossFit as a form of exercise," she continues. "I've seen too many injuries, too many torn ligaments."

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Body Network's Expert Weighs In

Portrait Of Young Arab Man With Shoulder Pain Suffering Sport Injury During Training At Gym, Middle Eastern Male Athlete Having Trauma After Fitness Workout, Rubbing Painful Area, Closeup

"Exercise that is too intense can cause burnout and injury," says Collingwood. "CrossFit tends to be too intense for many people, especially older people."

Do Not Take Steroids

Doping in sport. Abuse of anabolic steroids for sports. Anabolic steroids spilled on a wooden table. Fraud in sports. Pharmaceutical industry. Detailed view of the medication. Place for your text.

"And number five, I do not recommend steroids, testosterone, TRT, that special sauce," she says. "The reason why is I've seen cancer and heart failure. If you're doing it, at least see a doctor so they can monitor your labs."

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Body Network's Expert Weighs In

Doctor talking to patient in office

"Most things come with risks," Collingwood agrees. She recommends that it is "best to discuss pros and cons of these with your doctor." And if you enjoyed this article, take advantage of these 15 Quick Ways to Lose Body Fat Percentage in a Week.

@dr.jennale 5 things I will never do or recommend as a doctor who believes in sustainable weight loss #5thingschallenge #sustainableweightloss #fatloss ♬ original sound – Jenny | FM Physician


Leah Groth
Leah Groth has decades of experience covering all things health, wellness and fitness related. Read more