Over 10 years, a structured diet program in adults with obesity is linked to an 8.5% decrease in blood sugar levels and a 36.6% decrease in LDL cholesterol, without the use of medications.

Pro

Against

Mechanism

Synthesis from 1 study

How it works

Over 10 years, eating less fat, more protein, and staying active helps fat tissue shrink and stop sending out inflammatory signals, which lets the liver work better to lower bad cholesterol and lets the body use sugar more efficiently — all without medication, as shown in the long-term study...

Most probable mechanism

In Simple Terms

When people with obesity eat less fat, more protein, and stay active over many years, their fat tissue shrinks and stops sending out harmful signals, which helps the liver process fats better and lowers bad cholesterol; at the same time, the pancreas works more efficiently to control blood sugar, as seen in the 10-year study where people improved without drugs (10.1007/s40519-026-01852-6).

Causal chain

Chronic caloric restriction and increased protein intake reduce adipose tissue mass and decrease secretion of pro-inflammatory cytokines such as TNF-α and IL-6 from adipocytes and macrophages within fat tissue, lowering systemic inflammation (10.1007/s40519-026-01852-6)

Indirect evidence only

which leads to

Reduced systemic inflammation improves insulin signaling in skeletal muscle and liver, enhancing glucose uptake and suppressing hepatic glucose production, leading to sustained lower HbA1c levels (10.1007/s40519-026-01852-6)

Indirect evidence only

which leads to

Improved insulin sensitivity and reduced lipid flux from adipose tissue decrease hepatic de novo lipogenesis and increase fatty acid oxidation, reducing VLDL synthesis and lowering circulating LDL cholesterol (10.1007/s40519-026-01852-6)

Indirect evidence only

Evidence from Studies

Supporting (1)

Community contributions welcome

Long-term outcomes of a structured lifestyle-based nutritional intervention for obesity management: a 10-year observational study

Cohort Study

Human

2026 May 11

Contradicting (0)

Community contributions welcome

No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Long-term outcomes of a structured lifestyle-based nutritional intervention for obesity management: a 10-year observational study

Score: 48

DOI: 10.1007/s40519-026-01852-6

Similar Assertions

Eating fewer carbs might help people with type 2 diabetes who are overweight manage their blood sugar better, which could lower their chances of developing serious health problems like nerve damage, eye issues, or heart disease over time.

72%

In obese adults with type 2 diabetes, a year-long program that includes eating fewer calories and 12 weeks of supervised exercise is linked to measurable improvements in blood sugar control, body fat, aerobic fitness, and healthy cholesterol levels.

72%

When African Americans eat less saturated fat (like butter and fatty meat) and more carbs (like fruits and whole grains), their bad cholesterol (LDL) goes down, but another dangerous blood fat called Lp(a) goes up—so one risk goes down while another goes up.

72%

Eating less fat and more fruits and veggies for a while can slightly lower bad cholesterol, blood pressure, and a blood clotting factor in women after menopause.

71%

If you have type 2 diabetes and eat very few carbs (like less than a slice of bread per meal) while getting ongoing support from a doctor or coach, you might lower your blood sugar so much that you can stop taking diabetes meds—and for many people, that improvement lasts a year or even two.

71%