CELERY Side Effects & Safety. Celery oil and celery seeds are LIKELY SAFE when taken by mouth in food amounts. Celery is POSSIBLY SAFE for most people when taken by mouth or applied to the skin in medicinal amounts for a short period of time. However, it may cause skin inflammation and sensitivity to the sun.
If you want to . . . Lose weight: Creating a calorie deficit that results in weight loss is hard work. Most recommendations say that to lose weight, you must exercise for at least an hour a day, five times a week. The type of exercise matters, too.
The average study participant was getting 22 of these a day. In terms of weight, the researchers found that a person needed to accumulate an additional 14 MET-h/d to affect a pound of body weight. To put that number in a bit of perspective, you'd amass 3 MET-h/d by walking 3 miles in an hour. To put this all another way, to lose 10 pounds from physical activity would require you to be six times more active than the average person in this study; to lose 50 pounds would require you to be 30 times more active.