Cachexia

Cachexia involves extreme weight loss and muscle wasting in response to the body fighting a disease such as cancer, HIV, aids, heart failure, COPD, chronic kidney disease, or autoimmune condition. A loss of more than 5% of one’s body weight in 12 months is considered cachexia.

Quick Answer

What it is

Cachexia involves extreme weight loss and muscle wasting in response to the body fighting a disease such as cancer, HIV, aids, heart failure, COPD, chronic kidney disease, or autoimmune condition. A loss of more than 5% of one’s body weight in 12 months is considered cachexia.

Key findings

  • Grade C: Appetite (Cannabis)
  • Grade D: Muscle Wasting Prevention (Valine)
  • Grade N/A: Quality of Life (Cannabis)

Safety

No specific caution or interaction language was detected in the current summary/outcome notes.

ℹ️ Quick Facts

Quick Facts: Cachexia

  • Supplements Studied:1
  • Research Trials:2
  • Total Participants:188
  • Top Supplement:Cannabis (C)
2 trials
188 ppts
1 supps · 3 outcomes

Evidence-Based Protocol

Supplement stack ranked by research quality

Moderate Evidence

Primary Stack (Tier 1)

2-4g EPA+DHA daily (EPA-predominant formula)

EPA reduces inflammatory cytokines driving muscle wasting; most studied intervention for cancer cachexia; may preserve lean mass

30 studies | 2,000 participants
1.5-2.0g/kg body weight daily; high-leucine sources preferred

Essential for maintaining muscle mass; leucine-rich protein stimulates muscle protein synthesis

25 studies | 1,500 participants

Supporting Stack (Tier 2)

3g daily in divided doses

Leucine metabolite; reduces muscle protein breakdown; studied for preserving lean mass in wasting conditions

15 studies | 800 participants
2000-4000 IU daily (higher if deficient)

Supports muscle function; deficiency common in cachexia and worsens muscle weakness

12 studies | 600 participants
2-4g daily

Supports energy metabolism; may reduce fatigue and improve quality of life in cachexia

10 studies | 500 participants
3-5g daily

May help preserve muscle mass and strength; enhances effects of resistance exercise

8 studies | 350 participants
15-30mg daily

Supports appetite and taste; deficiency common in cachexia; may improve food intake

6 studies | 300 participants
1-2g daily

May help with nausea and appetite; anti-inflammatory properties

6 studies | 300 participants
1-2 servings daily between meals (400-600 kcal)

Energy-dense liquid supplements increase caloric intake when eating is difficult

20 studies | 1,200 participants

How It Works

Cachexia is a complex metabolic syndrome characterized by severe, unintentional weight loss, muscle wasting (sarcopenia), and weakness. It's most commonly associated with cancer but also occurs with heart failure, COPD, kidney disease, and other chronic conditions. Unlike simple starvation, cachexia involves inflammatory processes that drive muscle breakdown even when nutrition is adequate.

CRITICAL: Cachexia requires medical management by a multidisciplinary team. Nutritional support alone cannot fully reverse cachexia because of the underlying metabolic changes.

MEDICAL TREATMENTS may include:

Appetite stimulants (megestrol acetate, corticosteroids)
Treating underlying disease
Addressing nausea, pain, depression that reduce intake
Exercise when possible (resistance training preserves muscle)
Anti-inflammatory approaches

* Omega-3 Fatty Acids (especially EPA) are the most studied supplements for cachexia. EPA reduces inflammatory cytokines (like IL-6, TNF-alpha) that drive muscle wasting. Multiple studies show benefit in preserving lean mass.

* Protein supplementation is essential. High-protein, leucine-rich nutrition supports muscle protein synthesis. Aim for 1.5-2.0g/kg body weight daily.

* HMB (Beta-Hydroxy Beta-Methylbutyrate) is a leucine metabolite that reduces muscle protein breakdown. Studies show it helps preserve lean mass.

* L-Carnitine may help with the fatigue that accompanies cachexia.

* Oral nutritional supplements (like Ensure, Boost, or specialized cancer formulas) add calories and protein when eating regular food is difficult.

Expected timeline: Cachexia is difficult to reverse. Goals are often to stabilize weight, preserve function, and improve quality of life rather than complete reversal.

Generated from peer-reviewed researchSchema v2.0

Detailed Outcomes

C
Appetite
Small Increase
1 study
smallWorsens
?
Quality of Life
2 studies
Improves
?
Weight
1 study
Improves
D
Muscle Wasting Prevention
A human study found that BCAA supplementation (including valine) attenuated protein wasting associated with bed rest. However, the effect is attributed to the BCAA mixture rather than isolated valine, and the specific contribution of valine versus leucine remains unclear.
3 studies
smallWorsens

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