The Claim

In young males participating in resistance training, consuming a total daily protein intake of 1.8 g/kg body weight is sufficient to achieve significant increases in muscle size and strength over a 10-week period, with no additional benefit observed from ingesting a 35g casein supplement either during the day or at night.

Source: Daytime and nighttime casein supplements similarly increase muscle size and strength in response to resistance training earlier in the day: a preliminary investigation

What the research says

Supports is higher

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

Supports
58score
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.

Cause and effect
1 study reviewed
In plain English

For young guys lifting weights, eating 1.8 grams of protein per kilo of body weight each day is enough to gain muscle and get stronger in 10 weeks — it doesn’t matter if they take a 35g casein protein shake during the day or before bed.

See the scientific wording

In young males undergoing resistance training, total daily protein intake of 1.8 g/kg body weight is sufficient to support significant increases in muscle size and strength over 10 weeks, regardless of whether a 35g casein supplement is consumed during the day or night.

What the research says

1 study
  1. Study: Daytime and nighttime casein supplements similarly increase muscle size and strength in response to resistance training earlier in the day: a preliminary investigation

    The study found that young men gained muscle and strength just as well with 1.8g of protein per kg of body weight per day, whether they took a casein shake during the day or at night.

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

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.