Naturally Controlling Sugar Levels By Losing Weight

by Tony Rovere
(West Islip, NY)

Quick Answer

Losing excess weight can improve glucose, blood pressure, cholesterol in type 2 diabetes. Benefits often begin near 5% of weight, while larger sustained losses may sometimes produce remission. Drinking water cannot guarantee a 30–40-pound loss. Effective plans combine a manageable calorie deficit, nutritious meals, activity and appropriate medical support.

Tony Rovere shared two useful habits from his own 60-pound loss: replacing caloric drinks with water and planning meals. Both may help, but neither guarantees a fixed result.

Doctor’s Note: Weight loss can quickly change insulin or tablet needs. People using insulin or sulfonylureas should monitor glucose and discuss dose adjustment rather than changing treatment independently.

How Much Weight Loss Helps?

Goals are based on percentage of weight rather than a promised number:

  • About 5%: Can improve glucose, blood pressure and triglycerides.
  • About 5%–10%: Usually provides greater metabolic benefit.
  • More than 10%: May produce larger benefits and can increase the chance of type 2 diabetes remission, especially earlier in the disease.

At 200 pounds, 5% is 10 pounds and 10% is 20 pounds. A 30–40-pound target may suit some people but not others.

Does Weight Loss Cure Type 2 Diabetes?

Weight loss can produce remission in some people: HbA1c below 6.5% for at least three months without glucose-lowering medicine. It is not a permanent cure.

Remission is more likely after substantial sustained loss and earlier in diabetes. Ongoing HbA1c and complication screening remain necessary.

See diabetes and weight gain.

Can Drinking Water Cause Major Weight Loss?

Water has no calories, so replacing soda, sweetened coffee, juice or excess alcohol can reduce calorie intake. It may also help some people feel fuller.

Water does not melt fat or guarantee a fixed calorie reduction. The claim that it alone removes five pounds monthly is unsupported because appetite and energy expenditure adapt.

Choose water as the main drink, but follow medical fluid limits when required.

Meal Planning Is a Strong Strategy

Planning meals can reduce impulsive takeout, skipped meals and oversized portions. Include:

  • Vegetables or salad for about half the plate
  • A suitable portion of lean protein
  • A measured high-fiber carbohydrate portion
  • Healthy fats in moderate amounts
  • A backup meal or snack for unexpected schedule changes

One takeout meal does not “destroy” a diet; the overall pattern matters. See meal-planning guide.

Create a Realistic Calorie Deficit

A sustainable calorie deficit is needed. Aggressive restriction may cause muscle loss or hypoglycemia. A common pace is one to two pounds weekly.

Reduce sugary drinks, alcohol, oversized portions and frequent fried foods while increasing vegetables, protein and fiber. Calorie tracking is optional.

Protect Muscle

Use suitable protein, resistance exercise and about 150 minutes of moderate activity weekly. See exercise guidance.

Medication and Surgery Can Be Appropriate

Lifestyle is essential, but eligible adults may also benefit from anti-obesity medicine or metabolic surgery.

These treatments are not personal failure. Choice depends on benefits, risks, cost and health. See metformin and weight loss.

Diabetes Safety During Weight Loss

  • Monitor glucose more often when food intake or activity changes substantially.
  • Carry fast-acting carbohydrate if using insulin or a sulfonylurea.
  • Do not stop basal insulin or other medicine independently.
  • Avoid fasting or ketogenic dieting with an SGLT2 inhibitor unless supervised.
  • Contact the clinician for repeated lows, vomiting, dehydration or unexplained rapid loss.

A Practical Starting Plan

  1. Set an initial goal of about 5% of weight when weight loss is medically appropriate.
  2. Replace sugar-sweetened drinks with water or unsweetened alternatives.
  3. Plan meals and groceries before hunger and time pressure take over.
  4. Track weight weekly rather than reacting to daily fluid changes.
  5. Include aerobic and resistance activity.
  6. Review glucose, HbA1c, medicine and progress with the diabetes team.

Related Questions

Related Pages

References

Contributor: Tony Rovere

Updated by Dr. Albana Greca Sejdini, MD

Reviewed by Dr. Ruden Cakoni, MD

Reviewed: Aug 2026

This article does not replace medical care.

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