What Dietary Changes Will I Need to Make After Bariatric Surgery? After What Dietary Changes Will I Need to Make After Bariatric Surgery? treatment, you may need to observe a liquid weight loss plan initially, then progressively reintroduce pureed, soft, and subsequently strong meals. Portion sizes may be smaller, focusing on nutrient-dense foods like lean proteins, vegetables, and entire grains at the same time as warding off high-sugar and excessive-fat...