The Claim

In obese adults, a 10-day protein-sparing modified fast delivered via nasogastric tube is associated with no significant loss of handgrip strength.

Source: Feasibility of protein-sparing modified fast by tube (ProMoFasT) in obesity treatment: a phase II pilot trial on clinical safety and efficacy (appetite control, body composition, muscular strength, metabolic pattern, pulmonary function test)

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
45score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

Obese adults who follow a 10-day protein-sparing modified fast through a nasogastric tube maintain their handgrip strength despite losing weight and fat-free mass.

See the scientific wording

In obese adults, a 10-day protein-sparing modified fast delivered via nasogastric tube is associated with no significant loss of handgrip strength, suggesting preservation of skeletal muscle function despite significant weight loss and fat-free mass fluctuations.

Why this might work

When carbohydrates are removed, the body switches to burning fat for fuel and produces ketones, which the brain and muscles use instead of glucose. This reduces the need to break down muscle for energy. At the same time, a steady supply of protein from the feeding tube provides the building blocks needed to maintain muscle tissue. As a result, muscle strength stays strong even though the body loses weight quickly.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: Feasibility of protein-sparing modified fast by tube (ProMoFasT) in obesity treatment: a phase II pilot trial on clinical safety and efficacy (appetite control, body composition, muscular strength, metabolic pattern, pulmonary function test)

    Even though people lost a lot of weight quickly using a special tube-fed diet, their hand strength didn't get weaker—meaning their muscles stayed strong.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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