Most Anabolics work better with low body fat. Higher body fat tends to allow them to break down into unwanted compounds. Undesirable hormones and waste products work against you. Keeping doses low until BF is below 15% is easiest . Some use AI ( or Caber for Decca )to reduce aromatisation. Nandrolones ( decca) aromatise into progesterone which isn’t what men want. You can google the effects for more accurate information.
Decca also holds water which can be undesirable & stressful for overweight people. I find low doses ok with testosterone base and don’t consider it to be any worse than other compounds but it is different for everyone. NPP is another good nandrolone option- Quicker action so any unwanted sides are short lived-seems to hold less water and is active at lower doses
Just to add to that, higher body fat can also contribute to insulin resistance which can complicate metabolism while on juice. And deca's impact on lipid profiles can be more pronounced with increased body fat so keeping an eye on cholesterol levels could be beneficial. Look at the end of the day everyone reacts differently but lower bf is always best but not mandatory.
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